The European Union's foreign policy chief said on Tuesday Egypt's sentencing of 683 people to death breached international law and urged Cairo authorities to ensure defendants' rights to a fair and timely trial. An Egyptian court sentenced the leader of the outlawed Muslim Brotherhood and 682 supporters to death on Monday, intensifying a crackdown on the movement that could trigger protests and political violence before an election next month. The defendants were charged with crimes including inciting violence following the army overthrow of elected leader Mohamed Mursi, a senior Brotherhood member, in July after mass protests against his rule.