The Kilcoo Road and Cashel Road in Fermanagh are closed due to follow-up searches in the area following reports last week that a suspect device had been left in the area between Cashel Cross and Kiltyclogher.
Chief Inspector Roy Robinson said: “The safety of the community is of paramount importance.
“We are appealing to anyone who notices any suspicious objects not to touch them but to contact police immediately by calling 999.
“Anyone with information about this incident, or who saw any suspicious activity in area in recent days, is asked to contact police on the non emergency number 101, quoting reference 1050 of 17/12/17.
“Alternatively, information can also be provided to the independent charity Crimestoppers on 0800 555 111 which is 100% anonymous and gives people the power to speak up and stop crime.”