The ministry of health in Hamas-run Gaza said four people were killed and six others wounded in Israeli attacks on Sunday after the first phase of a fragile truce in the territory drew to a close.

"Since this morning, four dead and six wounded" have been brought to "hospitals in the Gaza Strip following Israeli attacks in various parts of the territory", the ministry said in a statement.

The Israeli military said that it struck suspects planting an "explosive device" in northern Gaza as the first phase of a fragile ceasefire with Hamas ended.

Meanwhile, the International Committee of the Red Cross called on Israel and Hamas to maintain their ceasefire in Gaza to prevent the conflict-weary region from sinking back into despair.

"The ceasefire agreement has saved countless lives and offered a beacon of hope amid unimaginable suffering. Any unravelling of the forward momentum created over the last six weeks risks plunging people back into despair," it said in a statement, adding the truce was "essential."

The statement came as Israel said it was suspending the entry of supplies into Gaza and as deadly attacks were reported in the territory after Israel and Hamas hit an impasse of how to proceed further.

Egypt's Foreign Minister Badr Abdelatty urged on Sunday the "full implementation" of the Gaza ceasefire deal, calling on the European Union to pressure Israel to enforce it.

"There is no alternative to the faithful and full implementation by all parties of what was signed last January," Abdelatty said at a press conference in Cairo, urging the EU to exert "maximum pressure on the parties, especially the Israeli party, regarding commitment to the ceasefire agreement". (AFP)