Justin Bieber allegedly has drugs "strewn around" his house.

The 19-year-old singer's home was raided last Tuesday in connection with allegations he had thrown eggs at a neighbour's house, causing $20,000 of damage.

TMZ claims LA County Sheriff's deputies were faced with evidence of drug use when inside Justin's property, reportedly including two "large cookie jars filled with weed in plain view".

The website writes there were also four to five empty codeine bottles in the mansion, as well as three bongs.
It's unknown who the supposed drugs belonged to.

Justin's rapper friend Lil Za, who was staying at the star's home, was arrested after police raided the home and apparently found ecstasy and Xanax.

Lil Za has since been released and Justin is thought to have given him an "open pass" to continue staying at his mansion.

Over the weekend, it was reported by TMZ that Justin is addicted to 'sizzurp', which usually consists of codeine and promethazine mixed with Sprite and a Jolly Rancher.

Allegedly there were Styrofoam cups scattered around the star's place, featuring elaborate drawings and names of the people drinking from them.

These were apparently used for sizzurp, with Justin thought to replace the Sprite with pineapple Fanta.

Justin is also reported to have a dedicated smoking room in the house, where he and his friends can consume marijuana.

When the police showed up, some of the star's pals are thought to have rushed to the toilet to flush some of the drugs.

Cops apparently didn't seize the substances as they weren't in the property to look for drugs.

Their sole purpose was allegedly to hunt down video equipment that could have been attached to surveillance cameras to shed light on the egg throwing incident.

Taking drugs from the home would have "exceeded the scope of the search warrant" claims TMZ.

According to the website's story over the weekend, Justin is taking sizzurp with "alarming regularity", causing many of those close to him to urge him to head to rehab.