Aid agencies are seeking $1.8 billion in international funds for 2016 to ease the suffering from a year of fighting in Yemen, where 21 million people now need help.

Jamie McGoldrick, the U.N. humanitarian coordinator for Yemen, says aid agencies are "very concerned that Yemen is a smaller crisis in a region that is sort of ravaged by the big crisis" in Syria.

McGoldrick told The Associated Press on Tuesday that the Yemen appeal is limited to the "most severe life-saving needs" because of the competition for global funds and attention.

He says the aid is to reach about 13.5 million people, or 65 percent of those in need of help. He says this includes millions who struggle daily to get enough food and have no access to clean water.