Los Angeles, June 2 (IANS): Actor Johnny Depp's friends have reportedly shared their concern for the star amid his ongoing legal drama with estranged wife Amber Heard, urging him to go in for rehab.

The 52-year-old, who is reportedly set to be quizzed by police over claims that he physically assaulted his estranged wife, was recently photographed partying with a mystery brunette until the wee hours of the morning.

Now his friends are reportedly worried for the star, who believe that rehab would help him to "clear" his head, reports mirror.co.uk.

According to The Sun newspaper, they have asked him to pull out of his band Hollywood Vampires’ European tour.

“Johnny’s team are really worried. He has hit the bottle to cope with it all. He is being closely watched by his security guys. They constantly check to make sure he is okay," a source said. 

“His management, sister, head of security and even his former partner Vanessa Paradis have joined together to support him."

The "Pirates of the Caribbean" star's band is due to play in Romania on Monday before starting their US tour next month.

Depp has been ordered to stay away from Heard after she claimed he hit her in the face with a cellphone, pulled her hair, struck her and screamed at her during a fight. 

Last week, Heard was granted a temporary restraining order against Depp until June 17.