Dr. Ajay Bhatnagar, a British-born cancer specialist known for his work in prostate cancer treatment in Arizona, has died at the age of 51 after experiencing a medical emergency following attendance at the Electric Daisy Carnival (EDC) in Medellín, Colombia.
Bhatnagar died on Monday, October 12, 2026, at Clínica El Rosario in Medellín, according to reports published by Colombian news organizations. His death followed complications that began while he was attending the electronic music festival over the weekend.
The physician was known professionally for his work in radiation oncology and for helping establish the Prostate Cancer Institute of Arizona in 2002. His career included more than two decades of experience treating patients with prostate cancer, including through specialized radiation treatment techniques.
News of his death has drawn attention to his medical career and the circumstances surrounding the emergency in Colombia. Authorities were investigating the case, and the precise medical cause of death had not been conclusively established in the reports reviewed.
What Happened to Dr. Ajay Bhatnagar?
According to reports from Colombia, Bhatnagar became unwell on Sunday, October 11, while attending the Electric Daisy Carnival at the Atanasio Girardot Sports Complex in Medellín.
After the medical emergency, people accompanying him took him to Clínica El Rosario, at the facility’s El Tesoro location. Medical staff reportedly managed to stabilize his condition initially, but his health later deteriorated.
Bhatnagar died at approximately 5 p.m. on Monday, October 12, according to several published accounts.
Reports about the incident said preliminary toxicology testing detected cocaine, amphetamines and alcohol in his system. However, the presence of these substances does not, by itself, establish the definitive cause of death. Investigators were still working to determine the circumstances surrounding the medical emergency and whether the substances contributed directly to his death.
No final forensic conclusion was identified in the reports reviewed for this article.
Who Was Dr. Ajay Bhatnagar?
Bhatnagar was a physician specializing in radiation oncology, with a professional focus on prostate cancer treatment.
Although born in London, England, he spent part of his childhood in Pennsylvania before pursuing higher education and a medical career in the United States. His education included bioengineering studies at the University of Pennsylvania and medical training at the University of Pittsburgh.
He subsequently developed expertise in radiation oncology and treatments designed to target cancer while limiting damage to surrounding healthy tissue.
His work was particularly associated with prostate cancer and brachytherapy, a treatment approach that places radioactive sources within or near the targeted tissue to deliver radiation directly to cancer cells.
Bhatnagar’s professional background reflected a combination of clinical practice, specialized cancer treatment and efforts to expand access to prostate cancer care.
His Work at the Prostate Cancer Institute of Arizona
One of Bhatnagar’s significant professional contributions was helping establish the Prostate Cancer Institute of Arizona in 2002.
The institute focused on prostate cancer care, including specialized treatment approaches such as low-dose-rate brachytherapy. This technique involves placing small radioactive implants in the prostate to deliver targeted radiation.
The treatment can offer selected patients an alternative to other prostate cancer therapies, depending on their diagnosis, disease stage and overall medical circumstances.
Bhatnagar also had professional connections with other cancer treatment organizations, including Alliance Oncology. His work reflected a long-standing commitment to radiation-based cancer treatment and the management of prostate cancer.
A profile published by HonorHealth lists Ajay Bhatnagar, MD, as a radiation oncology physician and records his medical education and postgraduate training at institutions in the United States.
His professional history remains an important part of the public record surrounding his death, separate from the circumstances of the medical emergency in Colombia.
Investigation Into His Death in Colombia
Bhatnagar’s death was one of two fatalities reported in connection with medical emergencies involving attendees of the October 10 and 11 EDC festival in Medellín.
Colombian news organizations reported that investigators were examining the circumstances of both deaths. Preliminary reports concerning Bhatnagar included toxicology findings, but authorities had not conclusively established the official cause of death in the information reviewed.
It is important to distinguish preliminary medical findings from a final forensic determination. The detection of substances in toxicology testing does not, on its own, explain the full circumstances of a person’s death or establish that a particular substance was solely responsible.
The available reporting also does not establish a proven connection between Bhatnagar’s case and the other fatal medical emergency at the festival.
Further official findings would be needed to clarify the precise sequence of events and the factors that contributed to his death.
The Broader Response to Medical Emergencies at EDC Medellín
The festival’s two reported fatalities prompted scrutiny of medical emergencies and safety arrangements at the event.
According to a report by Infobae Colombia, Medellín authorities reported 193 medical consultations during the festival, with seven people transferred to healthcare facilities and two deaths recorded.
The reported medical consultations involved a range of conditions, including intoxication, seizures and other health complications.
These figures provide context for the medical response during the event, but they do not establish that every emergency was related to drug use or that the two deaths had the same cause.
Authorities were continuing to investigate the fatalities, while public discussion focused on medical preparedness, event safety and measures intended to protect attendees.
Family, Personal Life and Funeral Arrangements
Although news reports provided information about Bhatnagar’s professional background and his life in the United States, the sources reviewed did not establish a complete account of his family’s public response or verified funeral arrangements.
For that reason, no unconfirmed statements have been attributed to relatives, and no specific memorial service details are included here.
Additional information from a family announcement, funeral home notice or official obituary could provide further details about arrangements to honor his life and the people closest to him.
Remembering Dr. Ajay Bhatnagar’s Medical Career
Bhatnagar’s professional legacy was tied to prostate cancer treatment and radiation oncology. Through his work at the Prostate Cancer Institute of Arizona and his involvement with cancer treatment organizations, he contributed to a field focused on treating cancer while protecting patients’ quality of life.
His career included specialized work in brachytherapy and more than two decades of experience in oncology, according to published accounts of his professional background.
His death in Colombia brought an abrupt end to that career and prompted renewed attention to the medical emergency that preceded it.
As investigators work to establish the circumstances of his passing, his professional contributions remain a significant part of the available information about his life.
Latest Update on Dr. Ajay Bhatnagar’s Death
As of October 20, 2026, published reports identify Dr. Ajay Bhatnagar as a 51-year-old British-born oncologist who lived in the United States and died in Medellín, Colombia, on October 12 after experiencing a medical emergency associated with his attendance at EDC.
Reports said preliminary toxicology tests detected cocaine, amphetamines and alcohol. However, the final cause of death had not been conclusively established in the information reviewed.
Bhatnagar was known for helping establish the Prostate Cancer Institute of Arizona in 2002 and for his work in radiation oncology and prostate cancer treatment.
Further official findings or a family obituary may provide additional information about the circumstances of his death and memorial arrangements.
Key Facts
| Detail | Information |
|---|---|
| Full name | Dr. Ajay Bhatnagar |
| Age | 51, according to multiple reports |
| Profession | Radiation oncologist and prostate cancer specialist |
| Birthplace | London, England, according to published reports |
| Residence | United States |
| Professional connection | Prostate Cancer Institute of Arizona |
| Institute established | 2002, according to published reports |
| Date of medical emergency | October 11, 2026 |
| Date of death | October 12, 2026 |
| Place of death | Clínica El Rosario, Medellín, Colombia |
| Event attended | Electric Daisy Carnival (EDC) Medellín |
| Reported toxicology findings | Cocaine, amphetamines and alcohol |
| Official cause of death | Not conclusively established in the reports reviewed |
| Investigation status | Circumstances remained under investigation |
Disclaimer: This article is based on published reporting available as of October 20, 2026. Preliminary toxicology findings are not equivalent to a final determination of cause of death. No unverified claims about the circumstances of Bhatnagar’s death, his family or funeral arrangements are presented as established facts.