The United Nations is appealing for $174 million to help Nigerian refugees who’ve fled to neighboring nations following militant attacks.

Boko Haram has killed thousands in the nation’s northeast by attacking villages, schools, churches and mosques.

It has also kidnapped students, including more than 200 schoolgirls abducted in April last year. A majority of them remain missing.

The militants have attacked relentlessly for six years, sending 192,000 people seeking shelter in Cameroon, Niger and Chad.

Read More: http://edition.cnn.com/2015/04/10/africa/nigeria-un-refugee-help/index.html