Bieber stopped by immigration officials at LA airport

Troubled teen heartthrob Justin Bieber was stopped by immigration officials at Los Angeles International Airport and questioned "for a lengthy time".

The Canadian popstar underwent additional screening by the airport officials following his arrival from Japan yesterday, Reuters reported.

Justin Bieber was swarmed by fans and the media as he left LAX. Credit: RTV

It was unclear why this was considered necessary or if it was connected to Bieber's recent legal troubles.

Almost 275,000 people have added their names to a petition calling on President Barack Obama to revoke Bieber's green card.