Lightning has struck and injured a father and his two children in Northern Ireland, UTV understands.
The man and a five-year-old boy are fighting for their lives, while a seven-year-old girl was seriously injured during the incident at Lisburn in Co Antrim.
It comes as thunderstorms and heavy downpours fell across the UK this afternoon, causing flash flooding.
Lightning has struck and injured a father and his two children in Northern Ireland, UTV understands.
The man and a five-year-old boy are fighting for their lives, while a seven-year-old girl was seriously injured during the incident at Lisburn in Co Antrim.
It is understood the three people had been at a school sports event at around 2pm at Laurehill Road when they were hit.
A spokeswoman for the South Eastern Area Health and Social Services Trust said the man was in a critical condition at Lagan Valley Hospital and would be transferred to an intensive care unit as soon as practically possible.
The two children were taken by ambulance to the Royal Hospital for Sick Children in Belfast for treatment to burns
A spokesman for the Belfast Health Trust confirmed the boy was critically ill and that the girl was in a serious condition.
The Northern Ireland Ambulance Service said it sent a number of rapid response and A&E crews to the scene.
Heavy downpours have also caused severe flooding in the town.
Thousands of passengers have been delayed after flash flooding caused a power outage at Luton Airport.
Flash floods have left cars submerged and turned roads into rivers, with close to a month's worth of rain falling in one hour.