Heavy fighting erupts in South Sudan capital

Sudan Peoples Liberation Movement in Opposition (SPLM-IO) soldiers loyal to rebel leader Riek Machar sit in vehicle at the airport in Juba on April 20, 2016. South Sudan has seen more fighting than peace since independence in July 2011. PHOTO | CARL DE SOUZA | AFP

Heavy fighting erupted in South Sudan's capital on Sunday as former rebels and government soldiers exchanged fire two days after gun battles left at least 150 fighters dead.

"Gunshots, heavily armed exchange UN House area once again; going on now since approx. 0825 (0525 GMT)," the UN Mission in South Sudan (UNMISS) said on Twitter, later adding the fighting was "relentless".