The United Nations and partners are appealing for more than $820 million to help refugees and others affected by violence in Cameroon, Nigeria and Central African Republic.

A U.N. statement Monday said it and Cameroon are appealing for $282 million to provide protection and assistance to 1.1 million people affected by violence from Nigeria's Boko Haram extremists and malnutrition compounded by flooding and recurrent drought.

The humanitarian plan also accounts for the thousands of refugees forced into Cameroon from Central African Republic because of ongoing conflict.

The U.N. says a regional refugee response plan aims for $346 million for more than 476,000 Central African refugees and the 289,000 people hosting them in neighboring countries. It also appeals for $200 million for 230,000 Nigerian refugees fleeing attacks, and their host communities.