In a press conference in Cairo on Friday, U.S. Secretary of State John Kerry no ceasefire had been reached yet in the deadly conflict in Gaza as he and U.N. chief Ban Ki-moon urged a seven-day halt in fighting.

Kerry, who has been leading international efforts to reach a truce, said at a press conference in Cairo with Ban that both the sides "still have some terminology" to agree to on a ceasefire, but added they had "fundamental framework" on a truce, Agence France-Presse reported.

Kerry added that he had not submitted any formal truce proposal to the Israeli government.

"They may have rejected some language in the proposal within the framework ... but there was no formal proposal submitted from me," he said. Washington's top diplomat also added that he believes there are ways of moving forward on issues of opening Rafah, Erez crossings into the Gaza strip.

U.N. Secretary-General Ban Ki-moon meanwhile called for a seven-day humanitarian truce with an extendable 12-hour pause.

Egypt's Foreign Minister Sameh Shoukri said "both sides have not shown till now enough willingness to negotiate." Shoukri also called for a seven day humanitarian truce in Gaza.