Watch: Alleged knifeman appears to attack two police officers in Croydon

An alleged knifeman appears to attack two police officers - in broad daylight - which left cops with a concussion and a suspected fracture.

Dramatic footage shows a man clad in a black jacket and headgear appearing to hit out at one cop, who is holding his legs.

He then circles round and pulls out a large black object, seemingly prompting the other officer to use spray while talking on his radio.

The first cop, who had been on the floor, then uses his taser - before the alleged attacker appears to try and rain down more blows.

He eventually falls over yards from a motorbike lying on the ground - as a brave member of the public runs to help.

The video was shot by roofer Robert Ball, 31, in Croydon, south London on December 30, at around 10am.

The Metropolitan Police said a man, 23, has been arrested and charged following an incident in the town, at Cherry Tree Green.

Two officers were injured, the force said - with one suffering a concussion and another a suspected fracture.

Mr Ball said: “I was really shocked when I realised it was a knife. He was trying to unsheathe it.

“The blade must have been as long as your forearm. I was like, ‘what the hell!’. I live in the area. It doesn’t feel very safe.”

Detectives are now appealing for witnesses to the Cherry Tree Green incident.

A statement said: “At around 10am on Thursday December 30 officers from the Met’s South Area Command Safer Transport Team stopped a man riding a motorcycle at Cherry Tree Green, Croydon.

“The man, aged 23, became violent during the stop. He was detained following Taser deployment.

“A knife was recovered at the scene.

“One officer suffered a concussion and a second officer suffered a suspected fracture.

“A 23-year-old man has been charged in connection with the incident.

“Anyone who either witnessed or has footage of the incident should email [email protected], call police on 101 or tweet @MetCC quoting 1096/30DEC.”