Prosecution witness arrested at Mubarak trial

A prosecution witness has been detained on charges of perjury while he was testifying in the trial of ousted President Hosni Mubarak.
The dramatic move Wednesday came after Capt. Mohammed Abdel-Hakim, in charge of ammunition for a Cairo security regiment, denied he had any knowledge that police were armed or given orders to shoot protesters in the anti-Mubarak uprising.
Lawyers for the families of slain protesters accused him of changing his earlier statements to prosecutors, and the judge ordered him arrested. Abdel-Hakim had told investigators he issued hundreds of bullets to each of his soldiers.
Prosecutors say four earlier witnesses also changed their stories, though none has been charged.
Mubarak is on trial for complicity in protester deaths.