A cross-border investigation has been launched into the tiger kidnapping of a security worker's wife and son.
An armed gang forced their way into the victims' home in Lagmore, west Belfast, at around 10pm on Wednesday night.
They abducted a woman and her teenage son while her husband, who works for a cash in transit company, was forced to attend work as usual on Thursday.
The gang then made off with what the Police Service of Northern Ireland said was a substantial sum of cash from his vehicle on Thursday afternoon.
Police were only alerted to the incident on Thursday evening.
The woman and her son were later found across the border by gardai responding to a report of a burnt-out van on the Castleblayney Road in Co Monaghan at around 8pm.
A PSNI spokesman said: "The family were not injured but are extremely traumatised following their ordeal."
Both the PSNI and the Garda are investigating and have appealed for information.