The pipe bomb was found on waste ground beside a police station
A pipe bomb found near a Strabane police station had been thrown at the building, police have said.
Army experts have taken away what they described as a "viable pipe bomb" which was found on the ground close to the station.
A security alert began following a telephone warning in the early hours of Monday.
People living close to the station in the Courtrai Park area were forced to leave their homes in the alert.
The pipe bomb was found on waste ground at the side of the police station. Local resident Cathy Brennan said it was very distressing.
"Have they a conscience or do they dislike the people of the park?" she said.
"The police barracks is behind us, but at the end of the day they're not targeting the police barracks because there's not a hope in hell that you would get near that police barracks.
"This is the second time now this has happened - you know my mother does not need this here, 81 years of age and a stroke victim into the bargain.
"It's out of the question in this day and age for anybody to be doing anything so stupid like that, I mean to say, have they a conscience?"
PSNI Chief Inspector Andy Lemon condemned the attack.
"It is shameful that the people who left this device have such little regard for the local community," he said.
"This device was on waste ground, near to homes and local life, and had it gone off, we could have been dealing with a very different situation. There could have been serious death or injury caused.
"It is shameful that the people who left this device have such little regard for the local community.
"I would pay tribute to the residents of Courtrai Park who were very firm and very strong through what has to be a traumatic occasion for them. There were elderly residents and young children being asked to leave their homes."