A black firefighter, who claims he was assaulted and tasered by police because of his skin colour, has lodged an official complaint.

Edric Kennedy-Macfoy, 28, also says he was insulted and arrested without good cause when he went to help six officers during a disturbance in Harrow View last year.

The firefighter, who was off duty at the time of the alleged incident, has lodged an official complaint against the force. It is being investigated by both the MPS Directorate of Professional Standards and the Independent Police Complaints Commission (IPCC).

The complaint is the latest in a wave of race-related allegations made against Metropolitan Police officers, which are being probed by the two watchdogs.

Mr Kennedy-Macfoy claims he was driving through the borough during the early hours of September 4 last year when he spotted a youth throwing a rock at a police van.

He says he then stopped his car to tell a group of officers, who were dispersing a party at a property in Harrow View.

But the firefighter claims he was insulted by the police officers, which included an inspector, sergeant, detective constable and two constables from Harrow, before being detained without good cause. Mr Kennedy-Macfoy also claims he was assaulted during his arrest and tasered.

He was later charged with obstructing police, but found not guilty following a trial at Brent Magistrates' Court in February.

The firefighter originally issued a complaint against the six officers shortly after the incident.

But the force did not launch a misconduct investigation because criminal proceedings against Mr Kennedy-Macfoy were ongoing.

His solicitor sent a further complaint letter outlining the precise details of the alleged incident last week.

A Met Police spokesman confirmed the MPS Directorate of Professional Standards is investigating the incident, which was also automatically referred to the IPCC because a taser was used.

The Met said it was taking the allegations "extremely seriously".

None of the officers, which also included a constable from the Diplomatic Protection Group and officers from black and ethnic backgrounds, have been suspended or restricted.

There are now 12 separate allegations of racism by Met officers under investigation by Scotland Yard and the IPCC.