Attorney Ahmed el-Khwaga said his 22-year-old client Shady Habash died in Cairo's Tora Prison complex. He said the cause of death was not immediately clear.

Egyptian President Abdel-Fattah el-Sissi said his country has been "negatively affected" by the conflict in Libya.

The closures came amid a harsh security clampdown following rare demonstrations in several cities last weekend, all of which were broken up by police.

Egyptians cast their ballots Saturday on the first of three days of voting on constitutional amendments that would allow President Abdel-Fattah el-Sissi to stay in power until 2030 and broaden the military’s role.

An Egyptian court on Saturday sentenced 51 people to two years in prison for taking part in protests last month, officials said.

An Egyptian court sentenced a blogger to three years in jail for "spreading false news" after he said about 45 per cent of married Egyptian women have the readiness for "immorality" and to cheat on their husbands.

Egypt on Thursday will unveil a major extension of the Suez Canal that President Abdel-Fattah el-Sissi has billed as an historic achievement needed to boost the country's ailing economy after years of unrest.

A former Egyptian army officer who became one of the country's most wanted militants has called on Egyptians to wage holy war against President el-Sissi, describing him as a "new pharaoh."

Egypt's president says a U.N.-backed coalition to rid Libya of Islamic militants is the best option.

Egypt's President Abdel-Fattah el-Sissi says a deadly assault on an army checkpoint in the Sinai Peninsula that killed 30 troops was a "foreign-funded operation."