Gaza's civil defence agency said Wednesday that Israeli strikes on a school sheltering displaced people in the war-ravaged Palestinian territory killed 31 people and wounded dozens, with Israel saying it had targeted Hamas militants.

Gaza civil defence media officer Ahmad Radwan told AFP that a total of 31 people were killed and dozens more wounded in Israeli strikes "on a school sheltering displaced persons" in the Bureij refugee camp in the centre of the Gaza Strip.

The Israeli military meanwhile said in a statement that its forces had struck a "Hamas command and control centre in the central Gaza Strip" which was used "to store weapons".

The strikes came as Israel drew international condemnation on Tuesday over its plans for an expanded Gaza offensive, as the country's far-right finance minister called for the Palestinian territory to be "destroyed".

Nearly all of Gaza's 2.4 million people have been displaced at least once during the war, sparked by Hamas' 7 October 2023 attack on Israel.

On Tuesday, Hamas dismissed as pointless ceasefire talks with Israel, accusing it of waging a "hunger war" on Gaza.

Israel's military resumed its offensive on the Gaza Strip in March, ending a two-month truce that saw a surge in aid into the territory and the release of hostages in exchange for Palestinian prisoners held by Israel.