The United States said on Thursday that it is imposing financial sanctions on two South Sudan military leaders — a commander of rebel forces and a major general in the army loyal to President Salva Kiir.

James Koang Chuol, a 53-year-old major general who defected from the South Sudan army, was cited for involvement in rebel attacks that “targeted civilians, including women and children, with killing, sexual violence and attacks on schools, hospitals, religious sites, and locations where civilians were seeking refuge.”

Santino Deng Wol, 51, a top commander in the Sudan People’s Liberation Army, is accused by the US Treasury Department of obstructing progress toward peace following the two sides’ signing of a ceasefire agreement in January.

Forces under the command of Maj Gen Deng Wol violated the agreement by carrying out offensives resulting in SPLA capture of the towns of Mayom, Tor Abyad and Wang Kai, the Treasury said.

“Both of the individuals we are designating today are prolonging the violent conflict in South Sudan and engaging in reprehensible violence,” Treasury Under Secretary for Terrorism and Financial Intelligence David Cohen said.