A Metropolitan Police officer who died while on duty in north London was chasing a suspect at the time, it has emerged.
Det Con Adele Cashman, 30, was taken to hospital after collapsing in Camden at about 21:45 GMT on Monday.
The officer, based at Kentish Town police station, died later at 23:10 GMT at the Royal Free Hospital.
The Met has begun an investigation into the circumstances surrounding her death. Her family have been informed.
Commander Tony Eastaugh said: "Adele worked on both Camden and Wandsworth boroughs and was held in high regard by all who met her - she will be sorely missed by everyone who had the privilege of working alongside her."