Luis Moreno-Ocampo, the chief prosecutor for the International Criminal Court (ICC), has said that he has evidence that Muammar Gaddafi, the Libyan leader, ordered his soldiers to use rape as a weapon of war.

He has told Al Jazeera he is also looking into allegations that security forces were given medication to enhance their sex drive.

"We are planning to add additional charges on rapes because we are collecting more information about Gaddafi's personal involvement in the attack in the use of rape as waeapon to control civilians," Moreno-Ocampo said.

"We have some information that the government gave viagra to soldiers to allow them to rape. So we are collecting this evidence and will go to judges adding the charge of rapes."

Nigel Pont of Mercy Corps discusses the allegations in interview with Al Jazeera.