Another Israeli airstrike triggered a fire that killed 45 people in a tent camp in the Gazan city of Rafah, officials said on Monday, prompting an outcry from global leaders, who urged the implementation of a World Court order to halt Israel's assault.

Palestinian families rushed to hospitals to prepare their dead for burial after a strike late on Sunday night set tents and rickety metal shelters ablaze.

Israel's military, which is trying to eliminate Hamas in Gaza, said it was investigating reports that a strike it carried out against commanders of the Islamist militant group in Rafah had caused the fire.