Finnish police are investigating up to 400 cases of theft, with some members reporting the loss of up to €1000 (£840) worth of virtual furniture and other items, according to Detective Sergeant Marko Levonen.
“We have done five home searches in five cities in Finland,” he said.
This is not the first time Habbo Hotel, which allows users to meet friends and buy virtual goods, has been targeted.
In 2007, a Dutch teenager was arrested for allegedly stealing virtual furniture worth thousands of euros on the site, which is believed to have more than 100 million registered “avatars”.
Full story: Police investigate Habbo Hotel virtual furniture theft