Detectives in Coleraine are appealing for information following a security alert in the Dehra Gardens, Garryduff Road area of Ballymoney.
Officers responded to a report of two suspicious devices on the window sill of a house at about 4.50am this morning (Monday, May 6).
Army bomb disposal officers were called to examine the devices.
Garryduff Church Hall was opened for families who had to leave their homes during the operation.
Two controlled explosions were carried out on the devices which were declared viable by the army.
Local residents have been allowed to return to their homes and the Garryduff Road has re-opened to traffic.
Detectives at CID in Coleraine would like to speak to anyone who has information on the incident to contact them on 0845 600 8000, or call Crimestoppers anonymously on 0800 555 111.