A free concert by R&B crooner Akon held at a Danish Mall yesterday (February 20) ended in violence after fans who were evacuated from the venue by police in response to a fire alarm turned on the authorities.

According to Reuters, around 2,000-3,000 people showed up at the Fields Shopping Mall in Copenhagen Wednesday to see the singer but only 1,000 people were let in.  People who were turned away could only watch from afar.

During the third song into Akon's set, a fire alarm would sound and police began evacuating fans who responded by protesting.  After the evacuation, the protest would turn physical as fans hurled rocks and bottles at the police.

Several people suffered injuries which were not serious and police arrested eight people. 

The alarm would later turn out to be false.

“It was a free concert and we knew that many people would come, but there were a lot of people there, more than we had expected,” Jens Geppel, the Fields Mall director said.

Geppel said that the mall is currently investigating into what went wrong.