The Islamist supporters of deposed Egyptian president Mohammed Morsi will boycott a referendum on a new constitution next month and organize a campaign against the vote, a spokesman said Monday. The Anti-Coup Alliance led by Morsi's Muslim Brotherhood movement had initially considered calling on its supporters to vote against the constitution. "We reject any vote under military rule," said Hamza al-Farawy, a spokesman for the Anti-Coup Alliance, which demands Morsi's reinstatement. Farawy said the coalition of Islamist groups, which conducts almost daily protests, would launch a boycott campaign. The referendum on January 14 and 15 is expected to ratify the new constitution, which replaces the one suspended by the military when it ousted Morsi in July.