An urgent rescue alert has been issued for a 14-year-old girl who has been missing since Monday.
Svetlana Murphy, from County Louth, Ireland, left the area three days ago and fears are growing for her wellbeing.
Police said in a statement an alert was triggered due to concerns there is an "immediate and serious risk to her health or welfare".
The teenager left her Blackrock home at around 4pm on Monday in the company of 18-year-old Nojus Maculevicius, the statement added.
The pair, who are travelling in a silver Hyundai Veloster car with registration number 132-D-13518, were seen in Newry, Co Down, that evening.
Garda also believe the vehicle was in the greater Belfast area at 5.35pm on Wednesday.
Svetlana is described as 5ft 1ins in height with a slim build, and has brown hair and brown eyes.
At the time she went missing, she was wearing navy tracksuit bottoms with a red and white stripe on the leg, a black zipped top and black runners.
Teen Maculevicius is described as being six foot in height with a slim build, and has dark brown hair and is clean shaven.
He was wearing dark grey Snickers work trousers and a black Snickers top. He may also have been wearing a khaki green hoody, and either black boots or Adidas runners.
Garda have urged those who see the pair not to approach them and instead immediately dial 999 or 112 or the nearest Garda Station providing as much information as possible.
