A man has been arrested by Gardaí investigating an attempted shooting in Co Offaly almost four years ago.

The incident happened at a sports gym in Tullamore on May 30th 2013.

At around 9.30pm, a man in military attire and a balaclava entered the gym, and attempted to fire a number of shots at another man.

The man with the weapon fled the scene after the gun failed to fire. Nobody was injured in the attempted shooting.

The man escaped in a car that was later found burnt out at a nearby cemetery.

A 33-year-old man was arrested in Tullamore this morning in connection with the incident.

He is being detained at Tullamore Garda Station, and is the fourth person to be arrested during the investigation to date.

Gardaí say the investigation is ongoing.