Gardai are hunting a man who repeatedly punched a teenager in the face during a late-night attack.
The 19-year-old woman was set upon near a Luas stop in what appeared to be a completely random and unprovoked assault - writes independent.ie.
The attack happened in the Tallaght area as the girl returned home after spending the evening with a friend.
She was approached by the man, who is described as being in his late 20s, and repeatedly punched.
Her face was cut and bruised, but she did not require hospital treatment.
A source said gardai were trying to establish a motive for the assault on Tuesday and were in the process of identifying the attacker.
"It has to be established if this was a failed robbery or if we have some individual on the streets randomly attacking people," said the source.
"Either way, it's worrying and efforts are being made to identify the suspect."
CCTV images from the Luas stop will be reviewed in the hope that the thug was captured on camera.
It is believed he fled in the direction of the Cookstown Industrial Estate.
Read More: 'I didn't think he was going to stop' - Girl who was viciously attacked 'thought she was going to die'
Pictures of the victim show her with a cut lip and bruising on her forehead.
"Officers from Tallaght Garda Station are investigating and no arrests have yet been made," said gardai.
The victim's sister posted a message on social media, warning people to exercise caution in the area late at night.
"My 19-year-old sister was attacked walking home from a friend's house a couple of mins from her house," the post read.
"For no reason whatsoever, some absolute scumbag up to no good decided he'd beat up a young girl.
"He was in his late 20s. Everyone needs to be so careful when out at night, thank God she's safe now and it didn't come to anything worse."
Separately, gardai are investigating an incident in which a delivery driver was attacked by a gang of teenagers in Tallaght.
The victim was punched in the face and knocked to the ground before the youths stole his €40 delivery fee in the attack, which occurred in August.
It is believed up to six people aged between 15 and 18 were responsible for the assault and robbery.
Read more news of Dublin here.