The United Nations highest court has begun hearing the Democratic Republic of Congo's complaint against neighboring Uganda for violating humanitarian law.

Congo accused Uganda of massacring civilians, looting and destruction in its opening argument Monday at the International Court of Justice in The Hague.

Congo also charged the Ugandan government with continuing to back warlords on Congolese territory who are plundering natural resources in the eastern part of the country.

Resource-rich Congo is demanding reparations for damages suffered during five years of war in which more than three million people died.

Uganda has previously denied the allegations and will make its argument Friday.

Congo first took Uganda to the World Court for abuses in 1999, one year after Uganda and Rwanda launched an invasion.

Both nations have since signed peace deals with the Congolese government.

Some information for this report provided by Reuters and AFP.