7NEWS Update - Tuesday December 28, 2021: Explosion rocks Canberra; another COVID test bungle in Sydney

A massive explosion has damaged a string of restaurants in Canberra overnight; experts warn there could be serious ramifications after another major testing bungle was revealed in Sydney; Cricket Australia is determined to keep the New Year's test in Sydney, despite positive cases in the England camp. Presented by Natarsha Belling. More news across the day on 7NEWS.com.au and 7Plus. Hosted on Acast. See acast.com/privacy for more information.