Egyptian police arrested 16 members of the outlawed Muslim Brotherhood on Friday, a member of the organization said.
Brotherhood member Abdel Moneim Mahmoud said the 16 were meeting at a home in Kafr el-Sheikh province when police stormed inside.
Those arrested included Mahmoud Ezzat, the fourth-ranking member of the organization, Mahmoud said.
Police declined comment.
Hundreds of Muslim Brotherhood members have been arrested since March during a wave of demonstrations against extension of Egypt's emergency laws.