The funeral is taking place this morning of Mr Joe McCloskey, the first fireman to die on duty in the North in nearly a decade.
The centre of Dungiven is expected to come to a halt as hundreds converge on the town for Mr McCloskey's funeral.
Mr McCloskey (50), a father of five, never recovered from his injuries after falling through a roof as he tackled flames at the Gorteen House Hotel in Limavady, Co Derry, last Sunday.
Sources close to the investigation revealed that the fire was almost certainly started deliberately.