Prime Minister Ehud Olmert urged the international community on Wednesday to increase its pressure on Iran as a deadline for Teheran to halt its uranium enrichment activities ran out. The UN Security Council had given Iran until Wednesday to freeze enrichment, a process that can be used to produce nuclear weapons. Officials at the UN nuclear watchdog agency were putting the finishing touches on a report expected to say that Iran has expanded its enrichment efforts instead of freezing them. "Today is the last day that was designated by the international community and by UN Security Council Resolution 1737," Olmert told a gathering of foreign journalists. "Therefore the international community will have to think of additional measures."