The US Treasury said Baudoin Ngaruye and Innocent Kaina are senior leaders of the Mouvement du 23 Mars (M23) militants, who control part of DR Congo's turbulent east.

The Treasury said they were listed under US financial sanctions "for their involvement in the recruitment and use of child soldiers in the conflict in the DRC and for being leaders of a group that is impeding the disarmament, repatriation, or resettlement of combatants."

It also accused Ngaruye of targeting children in the conflict in DR Congo, "including through killing, maiming, and sexual violence which violate international law."

Both were put on a travel blacklist and assets freeze list by the UN Security Council DRC Sanctions Committee on November 30.

"M23 leaders Ngaruye and Kaina are responsible for carrying out terrible acts of violence against civilians and children in the DRC," said Adam Szubin, director of the Office of Foreign Assets Control at the US Treasury.

In November, the Treasury also set sanctions on M23 chief Sultani Makenga.

The sanctions freeze any assets in the United States or US jurisdiction of those listed, and forbids any Americans from doing business with them.