More than 700 people have been killed and 2,800 injured in just five days since fighting escalated in the east of the Democratic Republic of Congo (DRC) between January 26-30, UN Secretary-General spokesperson Stephane Dujarric told reporters Friday.

Aid teams from the UN World Health Organization ( WHO) “cannot move freely to support the hospitals, even ambulances cannot run. It’s a situation that in public health is a nightmare,” said Dr Boureima Hama Sambo, WHO Representive in DRC.

The UN says at least 700 people have been killed in intense fighting in Goma, the largest city in eastern Democratic Republic of Congo, since Sunday. UN spokesman Stéphane Dujarric said 2,800 people have been injured,

"It wasn't Guinea-worm disease. After receiving treatment, he was able to resume his life as a fisherman. I was very proud to have helped him." In the Democratic Republic of the Congo, the elimination of guinea worm marks a major achievement in the prevention and control of neglected tropical diseases.

Staff at the Centers for Disease Control and Prevention have been told to halt all communication with the World Health Organization.

Japan has sent the Democratic Republic of the Congo 50,000 doses of a vaccine against mpox, previously known as monkeypox.

As UN agencies reported "relative calm" on Wednesday in the city of Goma in eastern Democratic Republic of the Congo (DRC), humanitarians warned that the chaos caused by advancing M23 rebel forces could fuel a region-wide health emergency.

"Unfairly onerous payments" are cited in the executive order as a reason for WHO withdrawal. Countries’ dues are a percentage of their gross domestic product, meaning that as the world’s richest nation, the United States has generally paid more than other countries.

Rwandan-backed M23 rebels say they are now in control of the key eastern Congolese city of Goma. Their fighters continue to claim more territory in one of the world's most mineral-rich territories.

British foreign secretary laments lack of global attention to crises in Africa compared with conflicts in other regions - Anadolu Ajansı

Until June, the United Nations had peacekeepers deployed in Bukavu, the capital of South Kivu province. The U.N. made an agreement with the government to gradually begin drawing down its mission, known as MONUSCO, and closed its Bukavu office.

Advances being made by the M23 rebel group in the Democratic Republic of Congo are "heightening the threat of a regional war," according to U.N. Secretary General Antonio Guterres.