At least 176 people were killed in two days of army and paramilitary strikes across Sudan, according to an AFP tally of tolls provided by officials, activists and lawyers on Tuesday.
In Omdurman, part of the Sudanese capital, paramilitary shelling killed at least 65 people and wounded hundreds on Tuesday, according to the state's army-aligned governor.
A single shell on a passenger bus "killed everyone on board and turned 22 people into body parts", said Khartoum governor Ahmed Othman Hamza.
He attributed the strike to "the terrorist militia", in reference to the paramilitary Rapid Support Forces, at war with the army since April 2023.
The attack comes a day after an army air strike on a market in the North Darfur town of Kabkabiya killed over 100 people, the pro-democracy Emergency Lawyers reported Tuesday.
"The air strike took place on the town's weekly market day, where residents from various nearby villages had gathered to shop, resulting in the death of more than 100 people and injury of hundreds, including women and children," said the lawyers' group, which has been documenting human rights abuses during the conflict.
The lawyers also reported six people were killed in North Kordofan state when a drone that had crashed on November 26 exploded.
In the famine-stricken Zamzam displacement camp in North Darfur, paramilitary shelling on Tuesday killed five people, according to civil society group the Darfur General Coordination of Camps for the Displaced and Refugees.
A UN-backed report in July declared famine had taken hold in the camp after a months-long RSF siege of state capital El-Fasher and the surrounding area.
The war between the RSF and the regular army has so far killed tens of thousands, uprooted 12 million and created what the United Nations has called the worst humanitarian crisis in recent memory.
It has also nearly destroyed Khartoum, control over which both sides have not managed to claim.
Most of Omdurman -- the capital's twin city across the Nile -- is under army control, while the RSF holds Khartoum North (Bahri) to the east.
Residents have continuously reported shelling across the river, with bombs and shrapnel regularly striking homes on both banks.
On Tuesday, eyewitnesses said artillery was striking Omdurman from multiple fronts.
"We haven't seen bombing this intense in six months," one eyewitness to the passenger bus shelling told AFP, also requesting anonymity.
Another reported shelling from the Wadi Seidna army base, in northern Omdurman, towards RSF positions in western Omdurman and across the river in Bahri.
The army currently controls parts of the capital, as well as the country's north and east.
The RSF has seized nearly the entire vast western region of Darfur, swathes of the southern Kordofan region and much of central Sudan.
Darfur, a region the size of France, is home to around a quarter of Sudan's population but more than half its displaced people.
It has also been the site of some of the war's most horrific violence.
In footage sent to AFP purporting to show the aftermath of Monday's strike on the market, people were seen sifting through rubble as the charred remains of children lay on scorched ground.
The footage, which AFP was unable to independently verify, was supplied by the Darfur General Coordination of Camps for the Displaced and Refugees.
Though some drone attacks have been attributed to the RSF, the Sudanese military is the only party with fighter jets and maintains a functional monopoly on the skies.
In a statement Tuesday, the army accused RSF-affiliated political groups of "spreading lies" and said its forces "target rebel activity bases".
The lawyers described the attack as a "horrendous massacre committed by army air strikes".
They said recent strikes across the country were part of an "escalation campaign... deliberately concentrated on densely populated residential areas", contradicting claims by warring parties that they only target military objectives.
Both the army and the RSF have been accused of indiscriminately targeting civilians and deliberately bombing residential areas.
On Tuesday, Human Rights Watch accused the RSF and allied Arab militias of carrying out numerous abuses against civilians in South Kordofan state from December 2023 to March 2024.
The rights organisation accused the groups of "war crimes" including "killings, rapes, and abductions of ethnic Nuba residents, as well as the looting and destruction of homes".
The group also urged the United Nations and the African Union to deploy a mission to protect civilians in Sudan.
© Agence France-Presse