A murder investigation is under way after a man was stabbed to death while minding his grandchildren in Skerries, Co Dublin.

Michael Gannon, 55, died after he was attacked in his daughter's home at Mourne Park yesterday evening.

A 29-year-old man, who was arrested a short time after, is being questioned at Balbriggan Garda Station.

Two homes at the centre of the investigation remain sealed off for a forensic examination - the scene of the stabbing and the scene of the arrest.

Mr Gannon, who was originally from Finglas, had been babysitting his two grandchildren, both aged under five. 

Shortly after 6pm, he was attacked and stabbed inside the front door of the house.

Gardaí tried but initially failed to gain access to the house next door to speak to a man there.

Following negotiations they were allowed in and the man, who is originally from Romania, was arrested a short time later.

A knife, believed to be the murder weapon, has also been recovered.

Gardaí have renewed their appeal for anyone who witnessed any suspicious activity in Mourne Park and surrounding areas between 5pm and 6pm yesterday to contact Balbriggan Garda Station on 01 8020511, the Garda Confidential Line 1800 666 111 or any Garda Station.