Liberian police have arrested a mercenary commander known as "Bob Marley", accused by the United Nations of ordering executions while fighting for Ivory Coast's ousted leader Laurent Gbagbo, Reuters quoted a spokesman as saying on Tuesday. The arrest is one of the most high-profile since the Ivorian post-election power struggle eased in April with Gbagbo's capture, ending a crisis in the West African state that killed thousands and displaced more than a million people. "He was arrested few weeks ago and brought to Monrovia and charged with mecenarism," police spokesman George Bardu said, adding Marley and 12 others had crossed the border from Ivory Coast into Liberia's Grand Gedeh County. Marley, whose real name is Isaac Chegbo, is believed to have been hired by Gbagbo to lead a force of Liberian mercenaries to help him stay in power. -- SPA