Investigation into Tyrone gas leak

Health and safety officials in the North are investigating a massive gas leak, which forced the evacuation of about 200 homes.

A gas cloud formed in Coalisland, Co Tyrone after a 30 tonne tank containing liquid petroleum gas ruptured in a bottling yard.

Families were forced to spend the night in a parochial hall after being evacuated when the leak was discovered.

Specially equipped fire crews are checking the damage.