Justin Bieber has sparked fresh health scares after posting pictures of himself looking thin and gaunt.

RadarOnline.com can reveal the snaps, documented to his 295million Instagram followers, are his first since mentor Sean ‘Diddy’ Combs was arrested over sex trafficking charges.

Source: InstagramThe pictures are Bieber’s first activity on social media since Diddy arrest.

The singer, 30, posted a series of pictures documenting his recent ongoings, mainly of which featured him working on music inside a recording studio.

Wearing a woolly blue hat, red jacket, blue shorts and red socks, Bieber looked dishevelled and scruffy.

He also posted a snap of himself drinking out of a cup and a close-up of a pink robin bird.

The Canadian rounded out the social media post with images of a full moon, and another with a hummingbird pecking around a bush.

Source: InstagramThis close-up picture was one of the many snaps he posted.

The pictures were his first social media activity was September 3, nearly two weeks before Diddy’s arrest.

According to TMZ, Bieber and his wife Hailey Baldwin, 27, also attended a Don Toliver concert on Saturday evening in Los Angeles.

At one point Bieber even got up on stage alongside his pal, which triggered loud cheers from the audience.

Source: InstagramBieber looked worrylingly skinny in the new pictures.

Bieber has left fans concerned for his well-being in recent weeks due to this skinny appearance, with many believing his former links with Diddy, and the inappropriateness of their relationship, have brought on huge stress.

Voicing their worries on social media after seeing Bieber and his wife Baldwin spotted leaving for dinner in LA on September 27, one user wrote: “He looks like he’s going through it. I don’t see happiness. Praying for him and what he went through.”

Source: MEGA