In announcing the deal, Pakistan's Prime Minister Shehbaz Sharif said Iran, the U.S. and Israel had agreed to an "immediate ceasefire everywhere including Lebanon and elsewhere" that was "EFFECTIVE IMMEDIATELY."

Sharif appeared to call out Israel in a follow-up statement, saying violations of the ceasefire "across the conflict zone ... undermine the spirit of the peace process."

"I earnestly and sincerely urge all parties to exercise restraint and respect the ceasefire for two weeks, as agreed upon," Sharif said.