Sudanese volunteer rescuers said four children were among 20 people killed in an army air strike in the capital Khartoum on Tuesday.
The strike also wounded 27 people, including women and children, the emergency response room (ERR) in Khartoum's south belt, one of hundreds of youth-led volunteer groups, said in a statement.
Sudan's ERRs have been coordinating life-saving aid for civilians caught in the crossfire since war began between the Sudanese military and the paramilitary Rapid Support Forces in April 2023.
They said rescuers had recovered "20 charred bodies, including four children and two women" after Tuesday's strike.
Earlier this year, the head of medical charity Doctors Without Borders (MSF) told AFP nearly a third of all war-related injuries admitted into MSF-hospitals "are women or children under 10".
Across Sudan, the war has killed tens of thousands of people, with some estimates of up to 150,000 dead.
It has also caused the world's largest displacement crisis and brought the country to the brink of famine.
Tuesday's strike comes as battles rage in Sudan's Al-Jazira state just south of the capital, where activists have reported over 50 deaths since Sunday.
Both the army and the RSF have been accused of war crimes, including targeting civilians, indiscriminately shelling residential areas and blocking or looting humanitarian aid.