Avalon Airport in Melbourne is placed into lockdown after a bomb scare, leading to an evacuation and widespread travel disruption. Multiple outlets report that police respond to the incident and that an arrest is made in connection with the scare. The airport disruption includes significant flight delays and operational stoppages, alongside broader traffic and road congestion in the surrounding area as travellers are affected and movements are restricted. Sources describe the situation as a “total shutdown,” reflecting the scale of the airport’s interruption. The incident results in chaos for passengers, including delays to scheduled flights while staff manage evacuations and airport security checks. The reports are consistent that the lockdown follows the bomb scare and that police involvement culminates in an arrest. However, the outlets do not provide further details about the device or the person arrested in the material provided. Authorities continue to manage the incident and its impacts on air travel and local road access.