Justin Bieber's laptop stolen

Justin Bieber's laptop has been stolen.

The Never Say Never hitmaker was performing in Tacoma, Washington, on Wednesday night when a thief struck, allegedly taking the computer and his camera, which the singer said contained a lot of "personal" material.

He tweeted, "sucks when u take personal footage and people dont respect your privacy. yesterday during the show me and my tour manager josh had some stuff stolen. really sucks. people should respect other's property. i had a lot of personal footage on that computer and camera and that is what bothers me the most. #lame #norespect (sic)"

It is unclear if anything else was taken in the alleged theft.

The incident comes on the same day Justin was the victim of a 'swatting' prank.

A call was placed to emergency services, with the person on the line claiming someone was waving a gun next to the 18-year-old star's Los Angeles home.

Cars and helicopters were dispatched to the property - which is in an area where stars including Kourtney Kardashian, Romeo and Travis Barker also have homes - and Justin's security staff let the officers in, but a sweep of the property found nothing.

Police believe the caller engaged in a prank using an app, with the same thing recently happening to both Miley Cyrus and Ashton Kutcher.