Danish police were searching for suspects Monday after two nights of cars being set ablaze in Copenhagen, mirroring a similar case in nearby southern Sweden.
A series of cars was set alight either late Sunday or early Monday. That followed a night in which 10 cars were set on fire in the Danish capital late Saturday.
More than 100 cars have been set on fire in the Swedish city of Malmo, which lies across the Oresund Strait from Copenhagen.
"There's no way of avoiding looking over to Sweden," said a Danish police spokesman speaking to the Ritzau news agency. "I'm in regular contact with my Swedish colleagues."