Raiders stole cash from a fast-food outlet last night in a so-called tiger kidnapping on the border between Donegal and Derry.
At about 7.30pm two men went into a house in Grove Cottages, Muff, Co Donegal, and tied up a man. When his female companion returned to the house she was taken to the fast-food outlet in Waterside, Derry.
She was ordered by the raiders to collect the takings and bring them to a location in Bridgend, Co Donegal.
While this was taking place the man was driven around the area for about an hour and a half until the money was handed over. At this stage the two were released and gardaí were called.
A Garda spokesman would not reveal the amount of money taken but said it was not a significant sum.
Officers in Buncrana Garda station are looking for information on a grey Ford Focus estate, registration UIW 111, between 7.30pm and 9.30pm between Muff, Waterside and Bridgend.
They are also looking for information on the movements of a yellow Honda Jazz during the same time frame in the same locations. Buncrana Garda station can be contacted on 074 9320540.