Moz left the stage two songs into the gig at after being hit on the head by a drink thrown from the crowd. He was struck after shaking hands with the audience by, what looks like to me, a plastic water bottle.
The attack happened after he had opened with This Charming Man and was playing second song Black Cloud.
The concert stopped for around 15 minutes as the crowd chanted his name. About 10 minutes later a crew member announced the concert would not continue.