Federal prosecutors have moved to seize four mosques and a New York skyscraper belonging to a non-profit foundation with alleged financial ties to Iran. On Thursday, prosecutors in Manhattan began legal action seeking the forfeiture of more than $500 million in the assets of the Alavi Foundation, which describes itself as a charitable foundation. The move is believed to be one of the largest property seizures in the name of “counterterrorism” in US history. The confiscation of the four mosques is expected to raise a number of legal issues surrounding the First Amendment right to freedom of religion. The move came as President Obama announced he would extend a number of sanctions against Iran for another year.