Egyptian Interior Ministry said Sunday its organs arrested 18 activists of the banned Muslim Brotherhood group in Alexandria and Sharqiya governorates. "Crackdown against the group led to the arrest of 18 activists and seizure of organizational documents belonging to the banned group," Egypt's state-run Middle East News Agency (MENA) quoted sources of the ministry as saying. The crackdown is part of "perfect security strikes" against underground group to abort its plans and future moves," the sources pointed out.