A bomb has exploded inside a car in Derry.
The explosion happened at around 22.45 last night.
Nobody was injured in the attack which happened in Carrickreagh Gardens in the Creggan area.
SDLP MLA Pat Ramsey said that dissidents were behind the attack.
He said the attack "bears the hallmarks of the dissident group formerly known as Republican Action Against Drugs."
"People in the area are telling me that because of continuing difficulties in the Creggan area they are actually considering moving on. There is no place for these paramilitary-style attacks in society, and such attacks by dissident republicans are not done in the name of anyone."
Residents in the area where forced to leave their homes for six hours after the attack while ATO took items away for analysis.
A PSNI spokesperson said: "ATO have confirmed that a viable explosive device had detonated inside a car parked in the area.
"A number of items have been taken away for forensic testing."
Sinn Féin Councillor Kevin Campbell said: "I received a number of calls from residents living in the Carrickreagh Gardens area to say that an explosive device was thrown into a parked car there."
He added: "While it is not yet known what group may have been responsible for leaving this device, what is known is that this action happened in a built up area.
"I would call upon anyone involved in this type of activity to desist."