Explosions shook Sudan's capital on Tuesday evening despite claims of a ceasefire on the fourth day of fighting that has killed nearly 200.
A weeks-long power struggle erupted into battles on Saturday between the forces of two generals who seized power in a 2021 coup: army chief Abdel Fattah Al Burhan and his deputy, Mohamed Hamdan Daglo, who commands the paramilitary Rapid Support Forces (RSF).
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Since then, international calls have mounted for an end to hostilities that have spawned increasing lawlessness, death and damage.
After international mediation, RSF commander Daglo, commonly known as Hemeti, said he would support a 24-hour "armistice", which the army denied any knowledge of before later blaming the RSF for breaking it.
A weeks-long power struggle erupted into battles on Saturday between the forces of two generals.
The RSF had already accused the army of violating the agreement.
By 1600 GMT, the time of the supposed start to the ceasefire, gunfire could still be heard throughout the capital Khartoum, according to several witnesses, and it continued into the evening.
"As of now the fighting in Sudan, including Khartoum and various other locations, is continuing. No sign of real abatement of the fighting," the spokesman for United Nations Secretary-General Antonio Guterres said.
Daglo's announcement came after US Secretary of State Antony Blinken said he spoke with the two generals and "underscored the urgent need for a ceasefire".
US Secretary of State Antony Blinken speaks during a press conference. File photo
Foreign ministers of the G7, which includes the US, had also called on Tuesday for the warring parties to "end hostilities immediately", as loud explosions were heard in Khartoum, where militiamen in turbans and fatigues roamed the streets.
Blinken also discussed with Saudi Foreign Minister Prince Faisal Bin Farhan ways to "stop military escalation, ending violence, and calming tensions" in Sudan.
Underscoring the chaos, Washington said one of its diplomatic convoys was fired upon, and the EU said its ambassador was attacked at home.
Aid groups have reported looting of medical and other supplies.
There are fears of a regional spillover from the conflict that has included air strikes and artillery fire.
Agence France-Presse