Rangers believe the trouble in Manchester which marred the UEFA Cup final involved many people with no known history of following the club.Rampaging fans were described as a "disgrace" who could have jeopardised England's bid to host the 2018 football World Cup, Gordon Brown warned on Thursday.

The Prime Minister condemned the supporters involved in violent clashes with police on Wednesday night - and said public drinking laws would also be reviewed.

Hundreds of fans turned violent when a big screen showing the match in the city's Piccadilly Gardens failed to work just before kick-off.

Fifteen officers were injured, as well as a police dog, and 42 arrests were made as hundreds of riot police and supporters fought running battles. One Zenit St Petersburg fan was stabbed but his injuries were not life-threatening.

Rangers chief executive Martin Bain returned to Glasgow on Thursday, and reflected on Wednesday's events.

"Unfortunately a screen went down in the centre of Manchester without maybe a separate feed coming in as back-up, and it has obviously been the catalyst for some incident," Bain said.

"Those scenes obviously are dreadful and I've seen them myself and we have been informed ... that those scenes were caused by supporters that don't normally attach themselves to our support.

"Therefore we're extremely disappointed and we'll do everything we possibly can to help Manchester Police find out who those perpetrators are."

Rangers security chief Kenny Scott insisted the club would "take the appropriate action" against trouble-causers.

"The club and the authorities, we have to identify anybody that was responsible for any of these acts of violence," Scott said on Sky Sports News.

"The club will take the appropriate action. The difficulty is of course that many of these people will have no association with Rangers Football Club and that exacerbates our difficulties in dealing appropriately with the situation which occurred in Manchester last night."

Scott stressed that plans to accommodate visiting supporters in Manchester city centre on the day of the game had been extensive.

"I don't think there's an awful lot more that could have been done," he said.

"We saw yesterday afternoon great scenes in the city of Manchester.

"The city absorbed the numbers that were there, despite the fact they exceeded the numbers which were expected.

"But unfortunately the catalyst for the disorder last night was the breaking down of the screen and though by no means do we condone the behaviour of the supporters who became involved in violence, particularly when police officers were injured and we particularly abhor that type of brehaviour, we still have got to reflect back on the fact that in the stadium the atmosphere was fantastic.

"We had positive comments from UEFA about the sporting behaviour of our supporters.

"In the city centre, if there were 120,000 people or so in the city centre, 200 or so according to police estimates and the estimates of the city of Manchester authorities, let down this club."

Scotland's First Minister Alex Salmond called for a wide-ranging inquiry into the clashes, and denounced the behaviour of "a small minority of fans" as "completely unacceptable".

He was speaking at First Minister's Questions where Labour leader Wendy Alexander called for an inquiry by Greater Manchester Police, Manchester City Council, Glasgow City Council, Strathclyde Police, and Rangers security.

Mr Salmond told MSPs: "The council have announced an inquiry this morning.

"I understand that initially at least it's quite limited in its scope, looking in particular to

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