A teenager was reportedly tabbed in the street as videos posted online show a large police presence in a residential street.
Speculation on social media that a police officer had been stabbed has been quashed as reports emerge of a teenage boy who has been knife in the street, the Daily Star reports.
Footage posted on Twitter shows a large police presence with officers standing around a body in a yellow high-vis jacket in the street.
A local shop assistant said: "It was a teenage boy, someone attacked him outside my shop at around 4pm.
"There's still loads of police everywhere. It was horrible, I hope he's okay".
Local reports suggest it happened near Stoke Poges Lane around 5.15pm, or just off nearby Elliman Avenue, on Shackleton Road.
A witness told Mirror Online that the body lying in the street had a police jacket over him.
The street appears to have been cordoned off.
A large police presence includes several police cars with flashing blue lights.
Thames Valley Police have been approached for comment.
In other news, a jilted husband who stabbed his ex-wife to death in front of her children has been jailed for life.
Elsewhere, a man who stabbed a pub landlord to death will serve at least 28 years behind bars - and was told there is "no certainty" he will ever be released.
And a death row inmate who stabbed a child rapist to death has been executed by electric chair - despite appeals for clemency by prison guards who say they owe him their life.
