Gardai have interviewed a number of teenage boys in relation to the rape of a 14-year-old girl in Tallaght.
Sources say none of the youths, who are all juveniles and from the Tallaght area, have been arrested, but they have been spoken to "informally" by the investigation team.
It is understood the suspects are aged between 14 and 17.
The rape happened shortly after 4pm on Monday in a green space close to the Ashgrove apartments, opposite St Mark's GAA Club on the Cookstown Road in the Springfield area of Tallaght.
The traumatised victim has given a detailed statement to a specialist child interviewer, and officers are following a definite line of inquiry. It is understood that CCTV has played a major part in the investigation.
Before making her statement, the victim was taken to the Sexual Assault Treatment Unit in the Rotunda Hospital, where she was treated for her injuries.
Gardai said there is no link between the rape and the sexual assault of two other teenagers in the locality around an hour later.
Officers received reports that two sisters who are aged in their late teens were attacked by six young men as they walked through Maplewood, which is also in Springfield, at 5.30pm.
The mother of the two girls told the Tallaght Echo newspaper they were walking back from the shops on Maplewood Drive when they were attacked.
"They tried to hold my daughters' hands down by their sides and were groping them and putting their hands down their tops," she said.
"They also exposed themselves. My daughters put up a struggle and got away.
"They feel if they were younger or had not been strong enough to get away that this attack could have gone further.
"My daughters have been left in shock, but thank God they were able to fight," she added.