A partially exploded incendiary device has been found in a department store in County Antrim.
The device was found in Cameron's
The device was found in Cameron's, in Ballymena, at about 0920 GMT on Thursday.
The extent of any damage is not yet known.
Dissident republicans have been linked to a recent wave of fire bombings, and police have warned there may be further attacks.
Police are urging keyholders in the town to check their premises.
The attack in Ballymena is the seventh suspected fire bomb attack in five days.
On Wednesday, police passing the Harry Corry premises on Church Street, Ballymena, noticed smoke coming from the property and called the fire brigade.