Searches have been carried out along the border by detectives investigating the murder of a police officer from the Irish Republic.
On Saturday police on both sides of the border renewed their appeals for information about the killing of Detective Garda Adrian Donohoe.
The 41-year-old was killed by armed robbers while escorting a cash delivery van near Dundalk on January 25.
Detective Donohoe was the first member of the Garda to be killed while on duty in 17 years.
On Saturday searches took place in Co Louth as part of the ongoing investigation into his murder.
The Divisional Search Team, Regional Support Unit, Garda Stolen Motor Vehicle Investigation Unit (National Bureau of Criminal Investigation) and the Divisional Scenes of Crime Unit were all involved.
Last week searches were carried out in the Carlingford area, and by the PSNI in south Armagh.
It is believed his killers fled to Northern Ireland after the murder.
The getaway car used by the robbery gang was found burnt out in a forest area near Keady in Co Armagh days after the murder.
A number of rewards for information remain in place, including one of €50,000 (£42,000) which has been offered by the Irish League of Credit Unions.