A woman has died in a car crash after being followed by police investigating reports of a person flying a drone over London’s Wandsworth Prison. It’s reportedly the first drone-related death outside of military use.

Police confirmed the woman died in the crash, while a man in his 20s – the apparent driver of the car – was in critical condition in hospital.

Scotland Yard reported that police were alerted to the drone flying around the prison grounds around 3am on Tuesday morning (August 9), according to the Independent.

A statement from Scotland Yard said: “Officers arrived and a car was seen to leave the scene. Officers followed the vehicle and at 3.10am it was seen to have been involved in a collision in Ashcombe Street at the junction of Wandsworth Bridge Road. At this stage, it is believed no other vehicle was involved the collision. The London Ambulance Service and London Fire Brigade attended.

“One occupant of the car, a woman in her 20s, was pronounced dead at the scene.”

Footage of drones delivering drugs to London prisons back in May was captured. However, details of why the drone was in the area have not been made clear, and no arrests have been made. The Independent Police Complaints Commission have begun an investigation, while formal identification and an a post-mortem examination are underway.