Ugly scenes have marred last night's Calvin Harris gig at the O2...
A garda and a security guard have been injured and up to 20 people arrested as disturbances broke out on the street, as the gig was due to begin.
The O2 was packed for the dance music gig.... but trouble broke out as gardai made more than six arrests for public order disturbances, including drunk and disorderly and drugs offences...
Dozens of people were escorted from the premises and a reporter for the Herald Newspaper claimed arrests spiked to 20 - with at least one garda and a security officer suffering injuries as ugly scenes marred the Scotish DJ's gig....
Those arrested were brought to Store Street Garda Station...
A Garda spokesman says there was no issue with fighting or any sort of brawl at the gig - and any arrests related to isolated public order incidents
