A Rangers fan carried out a violent sectarian attack on Celtic supporters at a service station.

Stephen Campbell, 23, shouted sectarian abuse and hurled a bottle at two men as the two sets of fans made their way home from separate games.

Co-accused Kevin Anderson, 33, admitted headbutting and injuring one victim during the incident at a garage filling station.

Campbell, of Dryburn Avenue, Glasgow, admitted breaching the peace at Broxden Services, near Perth, on August 13 2011 by swearing and shouting sectarian remarks.

He also admitted assaulting Alan Green and Alexander McKenzie by throwing a glass bottle at them.

Anderson, of Kempock Street, Gourock, admitted attacking and injuring Christopher MacDonald in the service station on the same date by headbutting him on the face and causing him to fall against a bin to his injury.

Perth Sheriff Court was told on Thursday that both accused had previous convictions and Sheriff Fiona Tait deferred sentence on them for the preparation of social work reports.

On the date of the alleged incident, Celtic were playing at home to Dundee United, while Rangers had been playing away at Inverness Caledonian Thistle.