Mubarak, 85, arrived at the Police Academy by helicopter to attend the sixth session of his trial for killing protesters seeking his ouster in January 2011.

State-run television footage showed him in the defendants' cage along with his co-defendant interior minister, six security chiefs and his two sons.

The trial also includes accusations of wasting public funds by selling gas to Israel at low prices. Mubarak was released from jail this week but placed under house arrest by interim prime minister Hazem el-Beblawi. He is being held at a military hospital in Cairo.

He was convicted last June and sentenced to life in prison, but a retrial was ordered in January after he appealed. He could face the death penalty in that case, and is also facing charges in several corruption cases.

(Agencies)

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