Justin Bieber could face six months in prison

The investigation is still in early stages, but police reportedly have already decided to refer the case to the LA County DA for possible criminal prosecution, which is quite common for high-profile cases, reported a website.

Selena Gomez with Justin Bieber

However, Bieber, 18, and his camp remained mum on the matter. Instead, the Canadian pop star released a brand new single called 'Die in Your Arms' and jetted off to Europe for a so-called PHASE 1 of operation secret concerts!.

The scuffle allegedly happened when the photographer tried to snap pictures of Bieber and his girlfriend Selena Gomez, after they walked out of a cinema hall in Calabasas. During the altercation, the pop star appeared angry and frustrated with Gomez trying to calm him down. u00a0