An elderly man who had been riding his mobility scooter in London was fatally stabbed today, the Metropolitan Police said.
Police officers were called to Cayton Road, Greenford, after 4pm to reports of a man with stab injuries, and despite the efforts of paramedics he was declared dead at the scene.
Police are working to inform the next of kin of the man, who is believed to be in his 80s. There have been no arrests so far.
Detective Chief Inspector Jim Eastwood from the Met's Specialist Crime Command said: "My officers are working to understand what has happened to this man, and we need the public's assistance.
"The elderly victim, who was riding a mobility scooter, was in the area at the time. If you saw the victim, or captured anyone acting suspiciously in the area, it is imperative that you make contact."
Chief Superintendent Sean Wilson, lead for policing in Ealing, said: "This is an awful incident that will understandably cause considerable alarm to people locally and across London. Our thoughts are with the elderly victim.
"We are supporting our colleagues in Specialist Crime as they work to understand what has happened and identify who is responsible for this horrific crime."