Updated

The chief prosecutor of the U.N. Yugoslav tribunal says he believes former Bosnian Serb military leader Gen. Ratko Mladic is physically and mentally fit to stand trial.

Serge Brammertz also said Wednesday his team has "done what we have to do" to win its case against former Bosnian Serb political leader Radovan Karadzic, with the prosecution due to finish arguments this month.

Speaking to reporters in The Hague, Brammertz said Mladic, 70, who has complained of various health problems, "well knows what this trial is about and what he's charged with."

Mladic's trial begins May 16.

The men are charged with planning and carrying out the 1995 genocide of more than 8,000 Muslim men and boys at Srebrenica, Bosnia. Both say they are innocent of wrongdoing.