A one-week ceasefire between Sudan's army and paramilitary Rapid Support Forces officially went into force at 9:45 pm (1945 GMT) Monday.
Multiple truces have been announced and breached during five weeks of fighting but the United States and Saudi Arabia, which brokered the deal, have said this one was "signed by the parties" and will be supported by a "ceasefire monitoring mechanism".
There had been an absence of signals on the ground, however, that fighters intended to honour the truce as battles continued on Monday.
