The Director-General of the World Health Organization (WHO) on Wednesday highlighted the need to support millions facing starvation and disease in the Horn of Africa.
Speaking from Geneva, Tedros Adhanom Ghebreyesus said drought, conflict, climate change and increasing prices for food, fuel and fertilizer, are all contributing to lack of access to sufficient food.
The countries affected are Djibouti, Ethiopia, Kenya, Somalia, South Sudan, Sudan and Uganda.
"Hunger and malnutrition pose a direct threat to health, but they also weaken the body's defenses, and open the door to diseases including pneumonia, measles and cholera," he explained.
Tedros said the crisis is forcing some people to choose between paying for food and healthcare, Many are migrating in search of food, which can put them at increased risk of disease.
WHO has provided more than $16 million from an emergency fund to address needs, but more support is required.
The agency is appealing for $123.7 million which will be used to prevent and control outbreaks, treat malnutrition, and provide essential health services as well as medicines.
Appeal for Tigray
Tedros said the drought is compounding the "man-made catastrophe" in the Tigray region of northern Ethiopian, where war has raged for nearly two years.
Some six million people are under siege by Ethiopian and Eritrean forces, he said, "sealed off from the outside world, with no telecommunications, no banking services and very limited electricity and fuel."
As a result, they are facing multiple outbreaks of malaria, anthrax, cholera, diarrhea and other diseases.
"This unimaginable cruelty must end. The only solution is peace," said Tedros.
At the end of the briefing, he appealed for greater global attention to the situation in Tigray.
"I can tell you that the humanitarian crisis in Tigray is more than (in) Ukraine, without any exaggeration. And I said it many months ago, maybe the reason is the colour of the skin of the people in Tigray".
Ukraine nuclear readiness
Also at the briefing:
A senior WHO official has underscored the agency's readiness to respond to any potential nuclear incident in Ukraine.
Dr. Michael Ryan, Executive Director, was answering a journalist's question regarding the deteriorating situation around the Zaporizhzhia Nuclear Power Plant.
WHO has been involved with the Ukrainian authorities since the beginning of the war, he said, including through the International Atomic Energy Agency (IAEA).
"We're in constant communication with the IAEA and remain ready as a member of the UN system to react, if there's a need to react," said Dr Ryan.
"A nuclear accident obviously would be catastrophic in the situation, to human life and to the environment, so we do remain concerned about that. We're guided by our colleagues at the IAEA, and will continue to offer medical response support to them and to the Government of Ukraine."