The Northern Territory has declared seven more Sydney postcodes to be coronavirus hotspots in the wake of emerging cases across the harbour city. The ruling applies from Thursday and involves the suburbs of Croydon, Croydon Park, Lilli Pilli, Strathfield, Strathfield North, Strathfield South and Sutherland. Anyone from them or Sydney’s northern beaches arriving in the Territory must complete 14 days of supervised quarantine. Acting Chief Minister Nicole Manison said Sydney hotspot residents already in the NT and who arrived on or after Christmas Day must also self isolate for two weeks and get tested. “This is based on the latest advice from our medical professionals and after assessing the situation in NSW,” Manison said. “This is also a reminder to Territorians that if you travel interstate and things change, that we will be acting swiftly. This is just the COVID-19 world that we live in now.” The decision came after …