Six youths were arrested in Copenhagen for setting cars and dumpsters ablaze and throwing stones at police in a fifth night of riots in a predominantly immigrant area of the Danish capital, police said Friday.

"We've had six arrests so far. They've been charged with throwing stones at police and setting fires to cars and waste containers," Chief Inspector Henrik Olesen of the Copenhagen police told AFP.

At least 11 cars were torched in various neighbourhoods of Copenhagen, and 10 others in the nearby town of Kokkedal.

On Thursday, 17 youths were arrested for rioting the previous night.

"We don't know why they're rioting. I think it's because they're bored. Some people say it's because of the cartoons but that's not my opinion," Olesen said.

He was referring to the reprinting of a controversial cartoon of the Prophet Mohammed in 17 Danish newspapers on Wednesday.

Protests have flared up again in several Muslim countries including Kuwait and Pakistan following the reprinting. The Palestinian Islamist movement Hamas also condemned the publication...

Three people were arrested for planning the murder, including two Tunisians who have lived in Denmark for more than seven years and whom Denmark has decided to expel without a trial.