Newtownards: Bus and tractor collide on Belfast Road
One person is in a serious condition in hospital after a tractor and a bus collided in County Down on Monday.
The incident happened on the Belfast Road in Newtownards at 16:10 BST.
Ten other people have been treated in the Ulster Hospital, with one described as stable and the others as "comfortable".
The tractor, which was towing a trailer, was involved in a crash with a number 10 Ulsterbus.
The PSNI said those travelling on the vehicle were treated at the scene and a number of them were taken to hospital.
Translink said there were 13 passengers on board. The transport company said the incident occurred at Bradshaws Brae.
Police and Translink investigations are under way.