ACT Policing responded to reports of an explosion at the Oracle Apartment complex in Belconnen at around 9:00 pm last night (17 February).
Attending officers seized the exploded remnants which will be submitted for forensic examination. They are believed to be from a commercial-grade firework.
The incident did not cause any significant property damage, and Police say there is no ongoing threat to public safety.
Anyone who witnessed the incident and has not yet spoken to police, or who has any information about the incident, is urged to contact Crime Stoppers on 1800 333 000, or via the Crime Stoppers ACT website and quote the reference number 6499137.
Information can be provided anonymously.