The incident happened on Tuesday morning.

A man has been arrested following an assault on a woman on the Luas. Gardaí have launched an investigation after a female passenger was struck in the head. The incident took place on the red Luas line on Tuesday, December 20th. At approximately 11.30 am, a male passenger was alighting at the Jervis Luas stop. As he was departing the tram, the male threw an item that struck a female passenger on her head. Gardaí in Store Street have launched an investigation following the alleged assault. The man, believed to be aged in his 30s, was arrested shortly after the attack. He was then taken to Store Street Garda Station. Gardaí confirmed he has been charged with public order offences. The male is due to appear before court at a later date, Gardaí stated. Anyone who may have witnessed the attack has been asked to come forward. Gardaí have called on people travelling on the red Luas line to contact them. Gardaí stated; "Any persons who travelled on this Luas this morning and can assist Gardaí with their investigation, please contact Store Street Garda station 01 666 8000." Witnesses can also contact the Garda Confidential Line on 1800 666 111, or any Garda station.