An Egyptian opposition party claimed today that police had "tortured to death" one of its members during a vicious crackdown on anti-goverment protesters.
Mohammed el-Gindy was allegedly electrocuted and beaten repeatedly on the head.
He died of his wounds today in a Cairo hospital, the Popular Current party said.
The Interior Ministry had no immediate comment.
Mr Gindy went missing for several days after protesting on January 27 in Tahrir Square against Egypt's new constitution, which was drafted by a panel packed with Islamists.
Party spokeswoman Mona Amer said that she had seen Mr Gindy's body and that it carried clear marks of torture.
She said he had been electrocuted, had broken ribs and a "cord appeared to have been wrapped around his neck."
A medical report said he died of a brain haemorrhage.
Party members were organising a funeral for Mr Gindy and for Mohammed Saad, who also died after clashes with police on Friday.
More than 60 people have died in protests across Egypt that began on January 24, the eve of the second anniversary of the start of the uprising that toppled Hosni Mubarak.
The activists' deaths came after Egyptian television showed footage of police beating and dragging a naked man during clashes on Friday near Egypt's presidential palace.
The video showed police trying to bundle Hamada Saber into a van after beating him.
Interior Minister Mohammed Ibrahim claimed on Saturday that an initial investigation had absolved officers of blame and showed that Mr Saber was stripped by protesters.
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