The testing second stage of Gaza's ceasefire was always in doubt; now it seems to be dead at the moment it was meant to start. Concern is mounting that war will return to this ravaged territory, deepening the profound suffering of Palestinians and threatening the lives of the remaining hostages held by Hamas.

Israel said Sunday it was suspending the entry of aid into Gaza, where both Israel and Palestinian sources reported Israeli military strikes as Hamas alleged a "coup" against a six-week old truce.The health ministry in Hamas-run Gaza reported at least four killed and six wounded in Israeli attacks.