Gardai have issued a Child Rescue Ireland Alert saying they are seriously concerned for the health and welfare of a 14-year-old girl.
Svetlana Murphy left her home on Coast Road, Blackrock, Co. Louth at around 4pm on Monday, April 19.
She is described as 5' 1" tall with a slim build and has brown hair and brown eyes.
At the time she went missing, Svetlana was wearing navy tracksuit bottoms with a red and white stripe on the leg, a black zipped top and black runners.
Svetlana is in the company of 18-year-old Nojus Maculevicius.
He is described as being 6' 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.
Both Svetlana and Nojus are travelling in a silver Hyundai Veloster car, with registration number 132-D-13518.
Gardaí say they are satisfied that Svetlana and Nojus travelled from Blackrock, Co. Louth to Newry, Co. Down on Monday, April 19 and were sighted in Newry at approximately 7pm.


Gardaí added they are satisfied the Hyundai Veloster car was in the greater Belfast area at 5.35pm yesterday evening, Wednesday 21st April 2021.
An Garda Síochána is not aware of Svetlana’s and Nojus’ whereabouts at this time.
They are appealing for anyone with information to contact them on 999 or 112.
A garda spokeswoman said: "Please do not approach those involved, instead immediately contact 999 / 112 or your local Garda Station providing as much information as possible."
The garda confidential line should not be used as this is not manned 24 hours a day.