A second fisherman has died after being overcome by fumes while working on a trawler in Co Donegal, on Monday.

A 27-year-old man from Galway was pronounced dead shortly after the incident in Killybegs.

A second fisherman, who was in his 40s and from the Philippines, was also overcome by fumes when he tried to help his colleague.

He has died at Letterkenny General Hospital.

Separate investigations are underway by gardaí and the Health and Safety Authority (HSA).