The Northern Ireland Ambulance Service (NIAS) has declared a major incident following a school bus crash in county Down.
Police and emergency services are currently at the scene at Ballyblack Road East in Newtownards.
It is understood up to 70 passengers were on board but the details of casualties are not yet clear.
Pictures on social media show the vehicle on its side in a field having left the road.
The road is closed and motorists are asked to avoid the area.
More to follow
Allow Twitter content?
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.
You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on Twitter to get the latest alerts.
Source Agencies