The United Nations is adding three new regions to the famine zone in Somalia.
Acute malnutrition is widespread in the east African nation that's suffering its worst drought in 60 years.
Getting aid to the country has been difficult because al Qaeda-linked militants control much of the country's most desperate areas.
"Despite increased attention in recent weeks, current humanitarian response remains inadequate due in part to ongoing access restrictions and difficulties in scaling up emergency assistance programs, as well as funding gaps," the U.N.'s Food Security and Nutrition Analysis Unit reported.
Thousands of Somali refugees have walked for miles to get to what is the world's largest refugee camp in search of relief. But many people have not survived the trip.