Police are investigating after reports a man was "attacked randomly and stabbed five times with a kitchen knife" in Mayfair near Claridge's."

Witnesses in businesses along Brook's Mews, behind the 5* hotel say the violent attack happened at around 7.30am today (31) and video shows the area cordoned off with a knife on the floor.

One witness said: "As I got into work I saw police and ambulances present."

"Police told us a random attack occurred."

"They said the person was attacked randomly and stabbed five times - three times in the abdomen, once in the back and once in the arm."

"Apparently nothing was stolen."

"Apparently the suspect fled before the police arrived."

"We saw one person - apparently a man - taken away in an ambulance."

"It was quite scary to have all that happening as we got into work."

A Met Police spokesperson confirmed officers were investigating an incident, and there were no fatalities.