Pakistan's Prime Minister Shehbaz Sharif also said on Monday that the ceasefire between the United States and Iran was "holding" and that efforts were underway to reach an agreement after talks in Islamabad at the weekend failed to do so.

"The immediate priority is to make every effort toward preventing the resumption of hostilities and to maintain the hard-won ceasefire momentum," Wang Yi told Pakistan's Ishaq Dar, according to a Chinese foreign ministry statement.

Wang said a joint peace plan by China and Pakistan announced last month as the two officials met in Beijing "still can serve as a direction for efforts toward a resolution".