CAIRO, May 21  -- An Egyptian court on Wednesday sentenced 155 Muslim Brotherhood supporters to jail terms, including 54 life terms, over violence last August in the Delta city of Mansoura, state-run Nile TV reported.

Aside from the 54 life sentences, the court handed down two- to 10-year terms to the other defendents for instigating violence and chaos.

Former President Mohamed Morsi, who hailed from the now blacklisted Muslim Brotherhood group, was removed by the military last July after mass protests against his one-year rule.

Since Morsi's removal, his supporters have been regularly holding anti-government marches nationwide, including in Mansoura, despite a massive security crackdown on them that left about 1,000 killed and thousands arrested.

Meanwhile, some extremist Islamist groups have launched a series of bomb attacks against police and military staff and facilities in Sinai Peninsula, the capital Cairo and different areas across Egypt.

Ex-military chief Abdel-Fattah al-Sisi, who led Morsi's removal, is currently running for president and is expected to make an easy win in the elections slated for May 26 and 27.