Scottish Labour leader Jim Murphy has been heckled by a serial protester who famously forced one of his predecessors to take refuge in a sandwich shop.

Sean Clerkin ambushed Mr Murphy outside Hampden Park in Glasgow ahead of his summit on lifting the ban on alcohol at football matches.

Footage of the incident posted online shows Mr Murphy dismissing Mr Clerkin's advances and continuing to talk on his mobile phone, saying: "I'm on the phone to my mum."

Mr Clerkin shouts: "You voted for the welfare cap, you voted for austerity. Have you got an answer to that?"

Mr Murphy, who was pelted with eggs during his Better Together soapbox tour during the referendum campaign, goes on to describe Mr Clerkin as "some guy that likes shouting at folk ... a bit like in the playground in primary school".

A second protester shouts: "Did your mother teach you to apologise for fiddling NHS figures?"

Mr Clerkin continues: "Why did you vote for the welfare cap? You voted against the poor, the sick, the weak and the disabled. That is a disgrace, Mr Murphy."

Mr Clerkin, an SNP supporter, is renowned for hassling Labour and UK Government politicians, including an infamous stunt that forced former Scottish Labour leader Iain Gray to take refuge in a Subway sandwich shop ahead of the 2011 Scottish election.

Mr Clerkin said: "Today we tackled Jim Murphy, the leader of the Scottish Labour Party, because this is a man that voted for the welfare cap and voted for cuts to the benefits of the poor, the disabled, the sick and dying.

"This is a man that also voted alongside the Scottish Labour Party for £30 billion of cuts to the poor over the next two or three years."

He added: "The idea of getting rid of alcohol from football is just a gimmick to try to win working-class votes.

"Well, I say to you working-class people: don't be fooled, vote against Labour, vote against the red Tories, vote for the Scottish National Party come the election and vote for socialism."

Mr Murphy said: "I was trying to talk to my mum about the football last night.

"My mum asked what the noise was in the background and I said: 'Don't worry about it mum', and I guess the rest is on the video.

"I got told at the end that he said: 'Vote SNP and socialism'.

"How do you do those two things at the same time? How do you do the opposite simultaneously?"