WATCH: Linfield fan invades pitch after Celtic match as riot squad are called in
Celtic took the first step towards the Champions League with a comfortable 2-0 win over Linfield at Windsor Park.
The Parkhead club had refused their ticket allocation for the first leg of the second qualifying round clash in Belfast due to safety fears.
This video footage was recorded at the end of the game and shows a Linfield fan invading the pitch before the riot squad are called to help stadium security.
Earlier in the match, Celtic midfielder Leigh Griffiths had bottles and coins thrown at him while taking a corner, and was then booked for time wasting when he tried to bring it to the referee's attention.