Egyptian police detained 14 members of the Muslim Brotherhood, the countryÂ’s most powerful opposition group, a security source said on Sunday. A Muslim Brotherhood source confirmed the arrests. The men, who include Hamed el-Sayed, a former parliamentary candidate, were at a house in a Cairo suburb when police raided it on Saturday night, the security source said. They are being held on suspicion of belonging to an illegal organisation and possessing Brotherhood literature, he added. Egyptian police regularly hold members of the Brotherhood for long periods and then release them without charge or trial. The Brotherhood seeks an Islamic state through democratic elections, and operates openly despite having been banned since 1954.