A 51-year-old man has died after falling through the ice at a lake in Lurgan Park.
It was reported to police at 1400 GMT that a man had fallen through the ice. He was taken to hospital in a serious condition.
Using the police helicopter, officers had managed to hoist the man from the water onto the ice.
But as other emergency services tried to reach him in a boat, it capsized.
Police said two fire service officers and a paramedic fell into the water "in treacherous conditions".
Two of the emergency service staff swam ashore and one was rescued by the Fire Service special rescue team. They were later taken to hospital.
The 51-year-old man, who was the focus of the initial rescue operation, was brought to shore and tended to by paramedics and an off duty doctor who had been in the area at the time.
He was later transferred to Craigavon Area Hospital by the coastguard helicopter.