An explosion was heard outside a police station in the Dunmurry area on the outskirts of west Belfast, Northern Ireland, media reports said Sunday.
Videos on social media showed a car on fire outside a Police Service of Northern Ireland (PSNI) base in the Kingsway area, according to the Belfast Telegraph.
Police confirmed that homes in the vicinity were being evacuated.
The blast was heard across the city shortly after 11 pm local time (2200GMT) Saturday, according to reports.
The outlet claimed that a car may have been hijacked in the area prior to the explosion.
There were no immediate reports of injuries.
Authorities did not provide details on the cause of the explosion or the investigation.