Warring sides in Sudan have reached an agreement for a seven-day humanitarian ceasefire, Saudi Arabia and the United States said Saturday in a joint statement after talks in Jeddah.

Representatives from both army chief Abdel Fattah al-Burhan and his former deputy-turned-rival Mohamed Hamdan Daglo vowed not to seek any military advantage before the truce goes into effect at 9:45 pm Khartoum time (1945 GMT) on May 22, the statement released by the US State Department said.

The ceasefire "shall remain in effect for seven days and may be extended with the agreement of both parties," it said.