The St Kilda East incident occurred 11 days after two gunmen targeted a Hanukkah festival at Bondi Beach, claiming 15 innocent lives.
Liberal MP David Southwick said it was an attack on the Jewish community and all Australians, and that the victims were still processing the firebombing.
“The community is still grieving from the Bondi attack, and this is again another attack on the Jewish community,” Southwick, who is Jewish, told reporters at the scene.
“I’ve spoken to police, and I believe that they have identified the individual and an arrest is forthcoming … nobody should have to deal with this as we wake up on Christmas Day, the day of celebrating with families and friends and loved ones.”
Be the first to know when major news happens. Sign up for breaking news alerts on email or turn on notifications in the app.