Gardai in Dublin are appealing for witnesses after a man in his 20's was killed after being hit by a car on the Naas road this morning.

They want to speak with anyone who was travelling into the city or towards Naas on the Dual carriageway, between Newlands Cross and the M.50 turn off, between 3am and 4 am.

Anyone with information is asked to contact gardai at Clondalkin garda station or the garda confidential line 1800 666 111.