Georgian authorities said on Wednesday that 29 opposition activists had been arrested for "plotting to overthrow the government," Russian news agencies reported. The arrests were made during a police raid on the opposition Justice party and its affiliate organizations throughout the country, Interior Minister Vano Merabishvili said, quoted by the Interfax news agency. The party's offices were searched and documents and computers were seized during the raid, which involved 450 police. "These people intended to organize a coup d'etat in Georgia and bring (former Georgian security minister) Igor Giorgadze to Tbilisi," Merabishvili said at a news briefing in the Georgian capital. Giorgadze is an exiled Georgian opposition leader. Merabishvili said intelligence services spent several months following the Justice party's activities, but he did not give details of the alleged coup plot.