Seems to have been some issues with the level crossing at Tile Shed Lane in Boldon Colliery, affecting service X34 today: https://t.co/6BXPisc6Dl.
A diversion along the A194 and A19 was in place and it appears that a seperate shuttle bus service ran as well.
RE: Stagecoach North East: Latest News & Discussion - January 2017