The International Criminal Court has announced that Kenyan Deputy President William Ruto will go on trial for crimes against humanity in September.It also recommended parts of the trial should be held in Kenya or Tanzania.Mr Ruto denies orchestrating 2007 post-election violence, as does fellow indictee President Uhuru Kenyatta.The news comes after weeks of pressure from other African states and the AU to drop the charges against Mr Kenyatta and his deputy, our correspondent says.Mr Kenyatta's trial is scheduled to begin in July.Time for preparationOn Monday, judges at the ICC accepted the request by Mr Ruto's lawyers for more time to prepare his defence.They ruled that trial of the deputy president - along with his co-accused, broadcaster Joshua arap Sang - would be delayed until 10 September.The ICC judges also said it might "be desirable to hold the commencement of trial and other portions thereof, to be determined at a later stage, in Kenya or, alternatively, in Tanzania".However, the prosecution said that despite its concerns about security it favoured bringing the trial closer to the victims.In another major development on Monday, says the BBC's Anna Holligan in The Hague, the ICC announced the case against the former president of the Ivory Coast, Laurent Gbagbo, had been adjourned because of "insufficient evidence".The judges said the evidence against Mr Gbagbo presented by prosecutors was not strong enough to allow the case to move to trial, but not weak enough for them to throw out the charges.The news attracted rare criticism from Human Rights Watch, which said the decision "highlights the urgent need for the prosecutor's office to improve the way it builds cases".Mr Gbagbo faces four charges of crimes against humanity relating to the violence that followed disputed presidential elections in 2010.