A loud banging sound last night in the Watsonia North region has caused locals to jump online immediately and wildly speculate about the cause of the sound. The noise, which reverberated around the area just before midnight last night, woke many residents, most of which seem to have headed across to Facebook to investigate the source.

While none of the commenters seemed overly qualified to speculate on the origin of the noise, and even less seemed to know the exact cause, that didn’t stop the rumour mill from going into overdrive. Among some of the estimates were a gunshot, letter box explosion, power line short circuit, fireworks, and gunshot aimed at a car thief.

At the time of writing, the cause remains a mystery, as weary residents wandered out to their letterboxes this morning to check if they were still in one piece. Do you know what actually happened?