A viable pipebomb has been recovered by the PSNI in west Belfast.
The explosive was made safe after being found in Coolnasilla Park West in the Andersonstown area of west Belfast.
The PSNI described the device as a "viable pipebomb type" and said a number of residents had to be evacuated during the security alert.
The device was made safe by bomb disposal officers and was taken away for forensic examination.
Detective Inspector Paul Rowland appealed for anyone with information to come forward.
"A number of residents were moved from their homes during this alert and we are thankful to them for their patience," he said.
"Those who left this device in a residential area clearly have no regard for the people who live here and I am appealing for the community's support in identifying the perpetrators."