THE HAGUE, Netherlands -- Judges at the Yugoslav war crimes tribunal are aiming to start Gen. Ratko Mladic's genocide trial on March 27.

At a status conference Thursday for the former Bosnian Serb military chief, presiding judge Alphons Orie said he aims to hold a pre-trial conference March 26 and prosecution opening statements the following day.

Also Thursday, Mladic pleaded not guilty to charges linked to a new allegation filed recently by prosecutors -- that Bosnian Serb troops executed more than 30 Muslim prisoners in the eastern Bosnian town of Bisina in July 1995.

Mladic had previously refused to enter pleas to any of the charges against him. Judges had entered not guilty pleas on his behalf.