The International Criminal Court on Monday convicted a Congolese rebel commander known as "The Terminator" of 18 counts of crimes against humanity and war crimes including murder, rape and sexual slavery for his role in atrocities in a bloody ethnic conflict in a mineral-rich region of Congo in 2002-2003.

Bosco Ntaganda, who maintained his innocence during his trial, faces a maximum life sentence following his convictions at the global court. He showed no emotion as Presiding Judge Robert Fremr passed judgment.

A separate hearing will be scheduled to determine his sentence. Ntaganda has 30 days to appeal.

Prosecutors gave horrific details of victims, including some who were disemboweled and had their throats slit, as part of the evidence during his three-year trial in The Hague. 

Ntaganda was first indicted in 2006 and became a symbol of impunity in Africa, even serving as a general in Congo's army before turning himself in in 2013 as his power base crumbled. 

Fremr said that Ntaganda was guilty as a direct perpetrator or a co-perpetrator of a string of crimes including murders, rapes of men and women, a massacre in a banana field behind a building called The Paradiso and of enlisting and using child soldiers.

During his trial, Ntaganda testified for weeks in his own defense, saying he wanted to put the record straight about his reputation as a ruthless military leader.

He was the deputy chief of staff and commander of operations for rebel group the Patriotic Forces for the Liberation of Congo. 

The force's leader, Thomas Lubanga, was convicted by the ICC in 2012 of using child soldiers. He is serving a 14-year prison sentence. 

Monday's convictions were a victory for ICC prosecutors after high-profile defeats recently. 

In January, judges acquitted former Ivory Coast president Laurent Gbagbo and a former government minister of involvement in crimes following disputed 2010 elections. 

Last year, a former Congolese vice president, Jean-Pierre Bemba, was acquitted on appeal of crimes allegedly committed by his militia in neighboring Central African Republic.

(With input from AP, AFP)