Ex-Bosnian Serb army head Ratko Mladic is appearing at a hearing at The Hague war crimes tribunal where he is due to enter pleas against genocide charges.

Mr Mladic had previously said he would boycott the hearing.

As the hearing began, the judge asked that Mr Mladic remove his cap in court.

Mr Mladic attempted to speak several times at the beginning of the proceedings, but the judge asked him to remain silent until he was given the opportunity to speak.