's top humanitarian official, Jan Egeland, says aid workers and civilians are getting caught in the crossfire in an increasingly complex war.

NPR: Darfur Violence Pits Sudan Against the U.N.

They said Turkish aid workers were giving food and humanitarian aid to the refugees at border crossings along the neighbors' 560-mile frontier.

WSJ: Syrian Offensive Leaves Hundreds Dead

"Generally, we have no problem with a small group of aid workers monitoring and arranging flow or distribution of humanitarian supplies, " Arif said.

CNN: N.Alliance concern over air base move

"Today, there's still insecurity, " Murthy said, adding that aid workers have limited access to many areas and a planned humanitarian corridor has yet to open.

CNN: U.N.: Gunmen kill woman while trying to rape girl at camp

Rebels opened fire on an armoured car carrying aid workers and burnt out a second vehicle on a main lakeside road south of Bujumbura, humanitarian staff said on Thursday.

BBC: Uncertainty over Burundi camps pledge