The ambulance service responding to the incident in Strangford Lough has said that some people are suffering from hypothermia, UTV reporter Aidan Kennedy has tweeted:
BREAKING NEWS - AMBULANCE SERVICE SAYS A NUMBER OF PEOPLE WITH HYPOTHERMIA AFTER 100 PEOPLE FEEL INTO WATER DURING KILLYLEAGH BOAT RACE
UTV Editor Chris Hagan has tweeted that initial reports suggest between 90 and 100 people fell into the water in Strangford Lough, and that the first casualties have arrived on dry land:
First reports suggesting between 90 and 100 people in the water in Strangford Lough. Two choppers in air. Major incident declared
First casualties being landed from major incident on Stangford Lough. Number of boats capsized after sudden weather storm.
The Maritime and Coastguard Agency has said it responded to reports that sailors were struggling in the windy conditions, but that it is too early to tell how many people are involved in the incident in Strangford Lough.
A statement on the agency's website said:
The Coastguard is this afternoon coordinating a rescue response after approximately 80 sailing dinghies were hit by stormy weather in Strangford Lough.
Belfast Coastguard was first contacted just before 2pm reporting that some of the boats had capsized, while others were struggling to cope in the strong winds and squally showers.
The Bangor and Portaferry Coastguard Rescue Teams, the Portaferry and Newcastle RNLI lifeboats, the Irish Coast Guard helicopter along with the helicopter from RAF Valley have been sent to the scene.
It is not clear at this time how many people are involved and if there are any injuries. A search and rescue operation is ongoing.
A rescue operation is under way after approximately 80 sailing dinghies were hit by stormy weather in Strangford Lough, Northern Ireland, the Maritime and Coastguard agency said.
Are today's youngsters at greater risk than previous generations? Or is restricting the freedom of our children jeopardising their future?Read the full story ›
A convicted drug smuggler jailed in Peru is set to be transferred to Northern Ireland where she will serve the rest of her sentence.
Michaella McCollum, from Dungannon, County Tyrone, and her friend Melissa Reid, from Glasgow, were jailed last year for six years and eight months.
The pair both admitted to trying to smuggle cocaine worth £1.5 million from the South American country to Spain.
War must always represent the abject failure of humanity, the head of the Anglican church in Ireland has said.
Archbishop of Armagh Dr Richard Clarke said commemorating the First World War could not be spiritually separated from the situation in Gaza and other recent conflicts.
Dr Clarke said: "War must always represent the abject failure of the human spirit and of humanity itself.
"It can never be other and we should never pretend it is other."
There are more pet dogs in the UK than ever before - the Tonight programme investigates where they come from, and how to buy responsibly.Read the full story ›
One of Tony Blair's ex-ministers has said the former Prime Minister was responsible for the so-called "comfort letters" sent to Irish republican "on the runs".
Labour's Kate Hoey said: "Surely the real responsibility for all of this, whatever he did in terms of getting the peace process, must lie at the very heart of government, which was the letters that were coming from the Prime Minster to Gerry Adams saying we are going to sort this."
According Lady Justice Hallett's report, 13 'On The Runs' received the royal prerogative of mercy between 2000 and 2002.
The report found two examples of somebody receiving a letter in error in addition to the Downey case.