Police are investigating whether the New IRA was responsible for the attempted murder of two officers on patrol in Co Tyrone.
PSNI assistant chief constable Bobby Singleton said the location of the incident on Thursday in Strabane and previous attacks made the involvement of the dissident republican splinter group a “strong line of inquiry”.
Two officers escaped injury in the attack at Mount Carmel Heights after a bomb detonated at the side of their vehicle. Police have said they have discovered what could be a command wire for the improvised explosive device during follow-up searches.