Ousted Egyptian president Mohammed Morsi has died after collapsing in court, according to state television.
State TV said the 67-year-old Morsi was attending a session Monday in his trial on espionage charges when he blacked out and then died.
Morsi, who hailed from Egypt's largest Islamist group, the now outlawed Muslim Brotherhood, was elected president in 2012 in the country's first free elections following the ouster the year before of long-time leader Hosni Mubarak.
The military ousted Morsi in 2013 after massive protests and crushed the Brotherhood in a major crackdown, arresting Morsi and many others of the group's leaders.
Morsi's son, Ahmed, confirmed the death of his father in a Facebook post.
Mohammed Sudan, leading member of the Muslim Brotherhood in London, described Morsi's death as "premeditated murder" saying that the former president was banned from receiving medicine or visits and there was little information about his health condition.
"He has been placed behind glass cage (during trials). No one can hear him or know what is happening to him," he said.
"He hasn't received any visits for a months or nearly a year. He complained before that he doesn't get his medicine."
Morsi was a senior figure in Egypt's most powerful Islamist group, the Muslim Brotherhood.
The military, led by then-Defence Minister Abdel-Fattah el-Sissi, ousted Morsi after massive protests against the Brotherhood's domination of power.
El-Sissi was subsequently elected president and has waged a massive crackdown on Islamists and other opponents since.