An elderly man who had been riding a mobility scooter in west London has been stabbed to death. Metropolitan police officers were called at 4.06pm on Tuesday to Cayton Road, Greenford, 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 have been in his 80s, and there have been no arrests. The Met said: “A crime scene is in place and urgent inquiries to establish what happened are ongoing.” DCI 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. “I’m asking for anyone with dashcam or cycle helmet footage to contact us if they were using the Western Avenue A40 eastbound in the proximity of Cayton Road and Welland Gardens between 3.15pm and 4pm. “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.” Ch Supt 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. “The support of the public is crucial. Police and the community must work together to identify violent offenders and remove them from our streets. “My officers will remain on scene. They are there to help and protect you – if you have information that you want to share please approach them and tell them what you know.” Forensic officers have been scouring the crime scene, loading bags containing various items into police vans. The cordoned off area covers a T-junction between Cayton Road, a quiet residential street with large semi-detached houses, and Runnymede Gardens, another street of semi-detached houses which runs parallel to the busy A40. Two blue, yellow and white crime scene tents are pitched up next to the A40 on Runnymede Gardens, where forensic officers are working under bright lights on the road surface. The stabbing location is yards away from a busy bus stop on the A40 and a railway bridge. Dozens of police officers are guarding the scene. Some neighbours are in their driveways on phone calls, visibly shocked at the flurry of police activity. There is a constant stream of heavy traffic on the A40 bordering the scene, a key arterial route into central London. The mayor of London, Sadiq Khan, wrote on Twitter: “I’m devastated that an elderly man was killed in a horrific attack this evening. My thoughts are with the victim’s loved ones. “I’m in close contact with MetPoliceUK who have an additional uniformed presence in the area. I urge anyone with information to come forward.”