Police hunt attackers after bride-to-be's father, 58, is punched senseless in sickening assault when he was on the stag party

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This is the shocking moment the father of a bride-to-be was knocked unconscious during a vicious assault that left him with a serious head injury.

Gary was attacked after he and his friends tried to break up a brawl of 15 people while visiting Manchester for a stag party.

The 58-year-old, from Somerset, remains in a serious condition in hospital after he was assaulted outside the Printworks almost a month ago.

He was punched and knocked unconscious after hitting his head on the ground on February 10 just before 2am.

A picture of Gary - whose surname has not been released - was circulated by his family, who hope showing him in hospital will help police find his attacker.

His daughter, Aimee, who did reveal her father's name for fear of reprisals, was forced to postpone her wedding, which was supposed to take place this month.  

Gary remains in a serious condition in hospital after he was assaulted trying to spit up a 15-person fight in Manchester city centre 

Aimee, left, was forced to postpone her wedding while her father, right, remains in hospital after he was attacked 

Officers released footage which shows him being punched and falling to the floor in the city centre.

Police say a fight involving about 15 people erupted before Gary and his friends attempted to break up the crowd. They want to speak to two men, pictured below, in connection with the incident.

Police want to speak to these two men as they investigate the city centre assault which happened after a stag do 

The father of a bride-to-be was attacked outside the Printworks complex in the centre of the city 

Detective Inspector Mark Davis, of Greater Manchester Police’s City of Manchester team, said: 'Gary had been looking forward to this night for ages, celebrating the marriage of his daughter and son-in-law, which was meant to take place this month.

'Instead, all of Gary’s family are beside themselves with worry, spending hours at his bedside, unable to celebrate what should be the happiest day of his daughter’s life until he recovers.

Gary is still in a serious condition in hospital after he hit his head on the floor after being punched in the street 

'People have already shared lots of helpful information with us, but we need the public to come forward with any detail from that night - it really could be the key to finding those responsible.' 

A 32-year old woman and three men, aged 25, 26, and 27, were arrested in connection with the attack. They have since been released under investigation.