An Egyptian court sentenced Mohamed Badie, the leader of the outlawed Muslim Brotherhood, and 13 other senior members of the group to death for inciting chaos and violence, a judge said in a televised session on Saturday.

The court also sentenced US-Egyptian citizen Mohamed Soltan to life in jail for supporting the group and transmitting false news. He is the son of Brotherhood preacher Salah Soltan, who was among those sentenced to death on Saturday.

Supporters of the Muslim Brotherhood and ousted President Mohamed Morsi, standing trial on charges of violence that broke out in August 2013, react after two fellow supporters were sentenced to death, in a court in Alexandria, March 29, 2014. | Reuters/Al Youm Al Saabi/Files

The sentences can be appealed before Egypt's highest civilian court in a process that could take years to reach a final verdict. The men were among thousands detained after the ousting of Islamist President Mohamed Mursi in 2013.

Egypt's mass trials of Brotherhood supporters have drawn international criticism of the country's judicial system.

Muslim Brotherhood's Supreme Guide Mohamed Badie (L) flashes the Rabaa sign as he stands behind bars during his trial with ousted Egyptian President Mohamed Mursi and other leaders of the brotherhood at a court in the police academy on the outskirts of Cairo December 14, 2014. | Reuters/Asmaa Waguih

President Abdel Fattah al-Sisi, who as army chief toppled Mursi following mass street protests, describes the Brotherhood as a major security threat. The Brotherhood says it is committed to peaceful activism and had nothing to do with recent Islamist militant violence in the country.

Feature image source: Reuters