It is reported more than 20 people were arrested at last night's Calvin Harris gig at Dublin's O2.

Most of those picked up were detained for public order reasons, and it is claimed more than six were arrested for drugs offences.

According to the Irish Independent, at least one garda and one security worker were injured during assaults at the concert.

Councillor Nial Ring says it was a nightmare for residents who live down at the Point.