According to the government of the Democratic Republic of the Congo, an army attack on a university campus in Sudan resulted in the deaths of ten citizens of that country.
The International University of Africa in Khartoum was the scene of bombings on Sunday afternoon, according to the report.
The regular army dropped the bombs knowing there were foreigners there, which hurts us very much, the Congolese foreign minister said.
The capital of Sudan has seen weeks-long fighting between opposing military forces.
The city's residential areas, which are frequently attacked by the military from the air, are bases for paramilitary fighters of the Rapid Support Forces (RSF).
It is unclear if the bombing victims on Sunday were college students. It might have been a location near or inside the university where several foreign nationals took refuge.
Without providing any additional information, UN High Commissioner for Refugees Filippo Grandi tweeted his shock at the news that 10 refugees had died in an attack in Khartoum.
In what appears to be a reference to the same attack, the RSF, which is engaged in a vicious power struggle with the army, claimed that Sunday's bombing had taken place in a neighborhood where African refugees were staying. 25 Congolese nationals were reported dead as a result.
It tweeted what it claimed to be a video of the incident. Smoke could be seen rising in the distance from the area where the International University of Africa is situated.
Speaking a combination of Arabic and Lingala, a language primarily spoken in the western part of the DR Congo, are people in the video, including a distraught woman who claims her husband died in the attack.
We are Congolese, as are many of the people here, claims one man. The question of where is the global community.
According to visual cues in the video, such as a mosque's minaret in the distance and what appears to be a communications tower nearby, the BBC has located the incident site in a region of Khartoum close to a university campus and a sports stadium.
Foreign Minister Christophe Lutundula stated that the Democratic Republic of the Congo had requested an explanation from the government of Sudan and expected the bodies of those killed to be returned without charge.
By doing this, "our compatriots will be buried with dignity in accordance with our traditions," he assured journalists on Monday.
The Congolese government has also requested that a humanitarian corridor be opened by the Sudanese authorities so that those who were hurt in the attack and others who are still stuck in Sudan can be evacuated.
The foreign minister made a point of stating that plans had been made to evacuate Congolese residents of Sudan ever since the conflict broke out on April 15th.
Some buses had transported students from the International University of Africa to Aswan, Egypt, from where they had taken a flight to Kinshasa, the capital of the Democratic Republic of the Congo.
Mr. Lutundula stated that such initiatives would continue.
Although it was frequently disregarded by both sides, the army and the RSF's humanitarian truce, which had been in effect since May 22nd, officially ended on Saturday night.
More than a million people have been driven from their homes as a result of the fighting, which is now in its eighth week.
