Four people arrested in connection with an armed robbery in Carlow this week are due in court this morning.

During the incident - which happened at around 2.30am on Wednesday - two men entered the Topaz filling station on the M9 at Tinryland, armed with a gun and a knife.

The men are said to have threatened staff, and one shot was fired during the raid.

Nobody was injured, but the men made off with a small sum of cash.

Three men and one woman, all believed to be in their 20s, were arrested following a search of a house in Carlow town later that morning.

The four people arrested are due before Carlow District Court this morning charged in connection with the case.