Egyptian security officials say police have detained 40 young members of the outlawed Muslim Brotherhood.
Security sources say police Saturday arrested the group at the seaside resort of Balteem and charged them with involvement in an illegal organization.
The government has detained many members of the Brotherhood over the past few months as part of a crackdown on the group.
The Brotherhood says Egyptian authorities are holding more than 500 of its members.
Although officially banned since 1954, the Brotherhood is Egypt's largest opposition party and frequently fields candidates as independents in Egyptian elections. It controls about one-fifth of the seats in parliament's lower house.
The Muslim Brotherhood says it wants to transform Egypt into an Islamic state through democratic reforms.
Some information for this report provided by AP, AFP and Reuters.