Gardaí are investigating the alleged rape of a member of the Defence Forces at a hotel in Dublin earlier this week.
The female member of the Defence Forces was with a number of colleagues at the hotel, which is being used for mandatory hotel quarantine.
The attack is alleged to have occurred late on Monday night.
The woman made a complaint to gardaí in the early hours of Tuesday and a criminal investigation was opened.
The inquiry is being carried out by the local divisional protective services bureau, the unit that specialises in the investigation of domestic and sexual crimes.
A scene was preserved and a forensic examination conducted.
The woman was also taken to a sexual assault unit for treatment and personal forensics have been carried out.
CCTV footage and other evidential material has also been gathered from the hotel.
Gardaí have spoken to a number of witnesses, but further more detailed interviews will be conducted.
No arrests have been made.
Garda Headquarters issued a statement confirming: "Gardaí are investigating an allegation of an assault at a hotel. Investigations are ongoing."
The Defence Forces also confirmed that it is aware of the alleged rape.
Military Police are not involved as the incident is now the subject of a garda investigation.
In a statement the Defence Forces said: "Óglaigh na hÉireann are aware of an alleged incident that recently took place in a hotel that is currently in use for the purpose of Mandatory Hotel Quarantine.
"As the matter is the subject of an ongoing garda investigation, it is inappropriate and not possible for us to comment any further".
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The Defence Forces is currently working with the Health Service Executive to support the national quarantine programme at six hotels in the Dublin area.
Its members provide oversight and assistance with administration and as State liaison for the programme, liases with airports, customs, gardaí, civilian transport and hotels.
Defence Force members are not involved in providing security at the facilities, which is being handled by private security contractors.