Liam Gallagher and two other members of the British rock group Oasis were arrested and briefly detained by authorities in Munich, Germany, early Sunday after an alleged clash with guests in a swanky hotel nightclub, police tell Reuters.

By Monday, details about the skirmish were starting to surface.

"The boy didn't look good, several of his teeth were punched out," Munich police spokesman Christoph Reichenbach tells Reuters, referring to Gallagher, 30.

The vocalist's spokeswoman said Gallagher would be spending much of Monday in a dentist's chair, while a German promoter announced that Monday's planned Oasis concert in Hamburg had been canceled because Gallagher's injuries were "too severe."

Sunday night's Munich concert had already been canceled.

Reichenbach said Gallagher and two other band members got into a fight with five Italians in a nightclub at the four-star Bayerischer Hof Hotel. Liam's brother, guitarist Noel, was not involved, police say.

Police say the bandmates had been fighting among themselves when one fell on the Italian hotel guests' table. "When they tried to get rid of the unwelcome visitor, all members of the band suddenly went for the Italians," police tell Reuters.

By the time the nightclub manager had summoned officers to the scene, the fight had moved to the hotel's lobby, according to Reichenbach , who went on to say that when Liam was detained, he attacked a cop and kicked him in the ribs "with full force."

A statement on the band's Web site says the Oasis members were innocent victims in the brawl and that their attackers fled before police arrived.

Still, that didn't stop police from filing charges of bodily harm, trespassing and material damage against Gallagher and his bandmates.