No one was injured when a window on a route bus was shattered near Dingli this evening.
The police said they were investigating what caused the incident, amid reports that a shot had been fired.
A police spokesman said officers had been told that a loud noise was heard and a glass window on one side of the bus was shattered, but the cause was still under investigation.
The incident happened at about 7.30pm in Triq ir-Rabat, a poorly-lit road bordered by fields, which links Rabat to Dingli