It is thought carbon monoxide poisoning is to blame for the deaths of a mother and daughter on a boat in the UK.

The rescue started yesterday on Lake Windermere in northern England. Emergency services rushed to the scene at around 4pm.

They found 3 people suffering severe breathing difficulties on a private boat.

36-year-old Kelly Webster and Lauren Thornton who was aged 10 were airlifted to hospital but did not survive.

Police are looking at the possibility of carbon monoxide poisoning.

A man who was also on board has now been released from hospital.

He has been named as 39-year-old Matthew Eteson who also owned the boat.