Search underway for teenager at disused quarry in Strabane

A search and rescue operation is underway for a missing teenage boy at a disused quarry in County Tyrone.

It is believed he was on a makeshift raft with three other teenagers when they went into the water at the quarry on Strahan's Road in the Backtown area of Strabane on Monday evening.

The other teenagers were rescued.

Police, fire fighters and volunteer divers are involved in the search for the young man, who is believed to be 17 years old.

Around 150 young people gathered at the scene after people in the area heard what happened.