A Humanitarian Crisis in Yemen Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Yemeni fighters of the southern separatist movement and firefighters attempt to extinguish a flame at an oil refinery in the port city of Aden on June 27, 2015, following shelling by Huthi rebels. ( SALEH AL-OBEIDI/AFP / Getty ) Produced by Arwa Gunja Produced by PRI and WNYC