Iran choked off internet access and arrested more than 20 mothers who were mourning children killed in the unrest that has broken out since the disputed June 12 presidential elections, as the opposition planned big demonstrations overnight in the capital. Clamping down before the planned opposition rally, the regime also warned journalists working for foreign media to stick to their offices for the next three days. The measures were aimed at depriving the opposition of its key means of mobilising the masses as Iran's clerical rulers keep a tight lid on dissent. Government opponents were seeking to get large numbers of demonstrators to turn out overnight and show their movement still has momentum.

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