An investigation is under way into an allegation that a woman was sexually assaulted at an army barracks in Dublin in the early hours of this morning.

The woman said two soldiers invited her into Cathal Brugha Barracks in Rathmines, where the attack is alleged to have occurred.

The Defence Forces says the allegation is being taken very seriously and Military Police are helping gardaí with their inquiries.

There are around 900 soldiers attached to Cathal Brugha Barracks in Rathmines in Dublin.

Some of them were out in a pub last night where two of them met a woman and invited her back to the barracks with them.

The woman was discovered by Defence Forces personnel in a distressed state in the early hours of this morning.

She was assisted by them and the gardaí were contacted before she was brought to Rathmines Garda Station at around 3am, where she made a formal complaint to gardaí.

Gardaí have begun a criminal investigation.

A location, believed to be a room in the barracks, has been sealed off for a forensic examination.

It is against Defence Forces regulations for unauthorised personnel to be on army, naval service or air corps premises without clearance.

The Defence Forces has confirmed that the allegation is being investigated.

A spokesperson also says the Defence Forces is conducting its own separate review into security and other matters at the barracks but points out that the garda investigation is taking precedence.

No arrests have been made.