An innocent pensioner was knocked unconscious at Upton Park in east London during the London riots, it has just emerged.

The 69-year-old man was walking out of Ladbrokes on Green Street when a youth grabbed him and pushed him into the shutters of a shop opposite.

The suspect then punched the victim in the stomach with such force he sent him stumbling to the ground and knocked him out.

It happened around 6.25pm on Monday, August 8.

The suspect and others then entered Ladbrokes, callously walking over the victim who was then lying unconscious on the ground.

Inside the group began smashing the shop up of fixtures and fittings before leaving empty handed.

Ten minutes later the suspect walked up to an Asian male on St Stephens Road, who appeared to be on his mobile phone.

There was a struggle. The victim broke free and threw something to the pavement possibly his mobile phone, which the suspect picked up before fleeing.

CCTV footage shows the second victim clearly shaken up by the incident.

Police have issued a photo still from the footage in an appeal for information and for the second victim to contact them.

Investigating officers believe a number of people would have seen the suspect and his accomplices prior to, during or after the attack. The area was very busy at the time and he was with a number of other males, one of whom had a German shepherd dog with him.

Acting Detective Inspector Ian Fleming said the incidents were unprovoked attacks on innocent males both of whom were just going about their day-to-day activity.

There have been no arrests.

Anyone with information is asked to call Detective Constable Stephen Field at Newham CID on (020) 8217 6648 or to remain anonymous they can call Crimestoppers on 0800 555 111.