An investigation is under way after an elderly man was assaulted during an aggravated burglary at his home in Co Offaly.

It is understood the man, who is in his 70s, was attacked during the break-in at the house in Kildangan, Tullamore, at around 8pm last night.

Three masked men threatened him with a knife and demanded money.

He was hit a number of times over the head with what is believed to have been a stick, and a knife was also held to his throat.

The man was taken to hospital and treated for shock and minor injuries, and was later discharged.

Gardaí are appealing for witnesses who may have been in the area or travelling on the Tullamore to Clara road between 7.30pm and 8.30pm and noticed anything suspicious to contact Tullamore Garda Station on 057-9327600 or the Garda Confidential Line on 1800 666 111.