Police in Japan have arrested two American men in connection with the death of an Irish student.
Twenty-one-year-old Nicola Furlong was found dead in a hotel room in Tokyo on Thursday morning. It is understood she had been strangled.
It is understood Ms Furlong was on a student exchange programme from Dublin City University.
Local reports suggest that she and a female friend were attending a concert on Wednesday night, but missed their train home.
It is believed the girls then met two American men at the train station, who said they could return to their hotel rather than wait a number of hours at the station for the next available train.
All four are believed to have returned to the hotel where they had a drink in the bar.
At around 4am, staff were alerted to medical difficulties with Ms Furlong.
Emergency services arrived and while it is believed she was still alive in the ambulance, she later died in hospital.
Police in Toyko have arrested two American men for questioning.
The results from Ms Furlong's post mortem examination and toxicology results are due to be released on Monday.