The float of a shop in the Ballykelly area was stolen during a break-in in the early hours of last Thursday morning.
The incident happened between 3am and 4am, with a passing driver seeing two men fleeing the scene in a silver Ford Focus, heading in the direction of Carrickmacross.
The men had made their escape by the time the gardaí had arrived on the scene.
Ballykelly is located on the Louth/Monaghan border, near to Louth Village and Stonetown.
Meanwhile, there was a similar break-in to a premises in the Hale Street area of Ardee in the early hours of Saturday morning.
Access to the premises was gained by the thieves cutting a hole in the wall. They then made off with the float and cigarettes.
Anyone who might have heard or seen anything in relation to this is asked to contact gardaí in Ardee.