A GANG laughed and celebrated as they burnt a homeless man alive on a train platform on Christmas Eve.

Seven migrants have been arrested in relation to the callous attack, which was caught on CCTV and shows a group torching the victim as he slept on a platform bench at a Berlin subway station.

8 Berlin police released CCTV footage showing the group suspected of carrying out the vicious attack

8 In the footage, the seven men aged between 15 and 21 appear to be laughing and joking

8 The attack comes just a few days after Tunisian terrorist Anis Amri hijacked a 35-tonne truck and used it to massacre 12 Christmas shoppers at the city's Breitscheidplatz

The men, aged 15 to 21, are suspected of torching him at Schönleinstraße station and an attempted murder investigation has been launched.

Six of the suspects are Syrian and one is Libyan.

Thomas Neuendorf, the vice chief of the press office at Berlin Police, told German newspaper Bild that detectives believe the 21-year-old is the main perpetrator.

After torching the homeless man, the suspected assailants hopped onto a train to make their getaway.

8 Berlin police revealed footage showing the group of men they believe carried out the attack Credit: Berlin Police

CCTV footage captured them watching and laughing as the man was burning on the platform.

Luckily the victim escaped almost unscathed thanks to the quick intervention of horrified witnesses.

8 The victim somehow escaped unscathed after being set alight while trying to sleep Credit: Berlin Police

The shocking attack happened just metres away from where a woman was kicked down the stairs at another station in the city.

A Bulgarian man is suspected of attacking the woman at Hermannstraße station, the next stop along from where the homeless man was set alight.

8 The shocking video comes just days after the city was rocked by the Christmas market terror attack which killed 12 Credit: Berlin Police

CCTV footage of that attack, which showed a man kicking a woman down the stairs at an underground station while smoking a cigarette while holding a bottle of beer, went viral thanks to a reward offer from Lady Gaga's bodyguard.

The latest attack comes as tensions in Berlin reach boiling point in the wake of last week's horrific terror attack in the city, which saw 12 people mown down by a lorry driven by Tunisian Anis Amri.

Chancellor Angela Merkel has faced a barrage of criticism over the country's open door migration policy, which some blame for the terror attack.

8 Police say they have arrested six Syrians and one Libyan in relation to the attack at a subway station in the city Credit: Berlin Police

The country has faced months of violence, beginning on July 18 when Pakistani teenager Riaz Khan Ahmadzai, 17, posing as an Afghan refugee, hacked at passengers on a train in Wurzburg with an axe, wounding five. He was shot dead by police.

A suspected ISIS airport bomb plotter hanged himself in a German prison after being arrested following a manhunt.

8 The station is just metres from the scene of another shocking attack in which a woman was kicked down the stairs for no apparent reason Credit: AP:Associated Press

Syrian national Jaber al-Bakr, 22, was found hanged in his cell in Leipzig, eastern Germany.

RELATED STORIES Comment JEREMY CLARKSON Help fight the Government’s plan to silence the free Press – and save your own freedom Pictured PATH TO JIHAD? Extraordinary picture shows 'Berlin terror trucker arriving with other migrants on Italian island in 2011' MIGRANT MELTING POT Inside former Nazi airport now housing 13,000 migrants in Germany's biggest refugee camp Revealed SUPERMARKET SNEAK Migrants trying to enter Britain are being offered spots in back of Lidl lorries for £5k a go Video 'you cannot touch me' Terrified woman screams at migrants as new footage of Cologne New Year's Eve sex attacks shows cops completely outnumbered

He had built 'a virtual bomb-making lab' in a flat in Chemnitz and was thought to have planned an attack against either one of Berlin's two airports or a transport hub in his home state of Saxony.

Al-Bakr was captured by fellow Syrian nationals who tied him up and handed him over to the authorities.

We pay for your stories! Do you have a story for The Sun Online news team? Email us at tips@the-sun.co.uk or call 0207 782 4368