The Metropolitan police have circulated images of two men they are seeking in connection with an assault on an officer who was dragged to the ground and kicked in the head during a protest by supporters of Tommy Robinson.

The officer, a medic, was attacked when supporters of the jailed rightwing activist – whose real name is Stephen Yaxley-Lennon – tried to breach a police cordon and attack counter-protesters during the demonstration on Saturday afternoon, police said.

Video footage circulated on social media appears to show the moment the officer was dragged to the ground and surrounded by protesters. The incident was also captured on the officer’s body-worn camera. Police are now asking for the public’s help to identify two men they would like to speak to in connection with the attack.

The male officer was not seriously hurt and has since returned to duty.

Supt Roy Smith, who policed Saturday’s demonstration, said: “Attacks on police officers, as with an attack on any emergency service worker, are attacks on the basic fabric of a civilised society.

“The sole purpose of deploying police medics to an event is to ensure the safety of those attending and provide care to those who require it.

“We have a dedicated team in place to investigate incidents like this at public order events, and rest assured we will not stop until those responsible are identified and brought to justice.

“I would urge anyone who has information relating to this sickening and cowardly attack to come forward, which you can do in complete confidence. I appeal to those involved, those who were with them on the day, or those who know who they are to do the right thing and come forward.”

Robinson was handed a nine-month sentence at the Old Bailey last month – of which he will serve nine and a half weeks – after he was found guilty of contempt of court.

The 36-year-old, from Luton, Bedfordshire, had filmed men accused of the sexual exploitation of young girls and livestreamed the footage on Facebook, in breach of a reporting ban, outside Leeds crown court in May 2018.

Anyone who recognises the two men can call the Met’s public order investigation team directly on 0208 246 0076 or Crimestoppers anonymously on 0800 555 111.