Septic tank fumes may have caused the deaths of a father and his two sons in a farming accident in Co Down last night.
The victims have been named as 22-year-old Nevin Spence, who played rugby for Ulster, his 30-year-old brother Graham and their 52-year-old father Noel.
A daughter, Emma, was rescued at the scene and is being treated at Belfast's Royal Victoria Hospital.
Emergency crews went to the family farm in Drumlough Road outside Hillsborough in Co Down shortly after 6pm yesterday following reports that four people had fallen into the tank.
According to John McPoland of the Northern Ireland Ambulance service, the tank where the accident occurred was not much more than 1.2m deep.
It is thought that they were trying to rescue their dog when they were overcome by the septic gases.
Our thoughts are with the family.