An Egyptian riot policeman hits a protester during clashes near Cairo's Tahrir Square on January 28, 2013.

Cairo -

An Egyptian man who was beaten and dragged naked by riot police during a violent protest has admitted that security forces harmed him, after earlier saying that protesters had undressed him.

The beating was caught on camera by The Associated Press, and the video was broadcast live on Egyptian television late on Friday as protests raged in the streets outside the presidential palace.

A new video emerged online on Sunday of Hamda Saber in a hospital bed telling activists that police apologised for any wrongdoing. A male and female are heard urging him to speak honestly and not to accept any payments for absolving police in any abuse.

Saber was receiving treatment at a police hospital when he told prosecutors that protesters undressed him during clashes and denied police assaulted him. - Sapa-AP