The 'Beauty and a Beat' singer allegedly 'went nuts' on a fellow reveller as he partied at a Southampton hotspot, leading to a physical altercation between members of the star's entourage and club patrons, reported New York Daily News.
The fight is thought to have been triggered by a heated exchange between Bieber, 19, and a male club-goer after a female friend attempted to get a picture clicked with the singer in his roped-off VIP section. "He ripped his shirt off and went nuts.
He was screaming," a source said. Bieber's security team quickly intervened and took the star out to the club's parking lot to cool off, but things took a turn for the worse inside the nightclub.
The singer's friends and members of his security were involved in a fight after he was escorted out, and an eyewitness reported seeing blood. Earlier, the 'Boyfriend' hitmaker's bodyguards were accused of being 'heavy-handed' with fans who had hoped to meet the star.
Bieber arrived with his entourage and four bodyguards at around 2am and quickly took over the VIP area, which was closely guarded by his eagle-eyed minders.
The security team were described as being 'intimidating' and 'overbearing', and even flashed a torch in the face of party-goers who tried to snap pictures of Bieber on their camera phones.