The chief prosecutor for the International Criminal Court has said that Muammar Gaddafi, the Libyan leader, and his key aides, will be investigated for possible crimes against humanity.

Luis Moreno-Ocampo said on Thursday he would be holding Gaddafi's government to account over reports of atrocities committed against peaceful protesters.

Hundreds have been killed in the uprising against Gaddafi's 40-year rule and thousands injured.

Alan Fisher reports from The Hague in the Netherlands.