Prime Minister Anthony Albanese has condemned attacks by Hamas against Israel, describing the conflict as a "very dark 24 hours".
The Palestinian militant group, which rules the Gaza Strip and has been classified as a terrorist organisation by Australia since 2001, launched a multi-front attack on Israel on Saturday that included missile strikes and fighter incursions.
Israeli media reported at least 200 Israelis were killed while Gazan health officials said more than 230 Palestinians were killed in Israel's retaliatory air strikes on Gaza City.