The alarm was received at 2:40 a.m. on Wednesday after residents heard a bang near a gate.
There are minor damages and no injuries, says Patric Thelander, duty officer with the police, to TT.
The incident is being investigated as endangering the public and as a violation of the Act on Flammable and Explosive Goods. An object has been found at the scene, which is being examined by technicians.
