Two women have been arrested in connection with the fatal stabbing of a 16 year old boy from Tallaght.
Reece Cullen was on the phone to his girlfriend when he was stabbed in the heart in the attack on Kilclare Crescent on the 5th of January.
A 29 year old woman was previously arrested in connection with the case but was later released without charged.
A 14 year old boy was questioned by detectives in the wake of the killing, after he went to Tallaght Garda Station with his mum.
The female suspects in their 30s arrested this morning, can be questioned for up to 72 hours.