Cairo: One person was killed and two wounded on Tuesday when a bomb they were carrying in a car exploded in the Egyptian city of Alexandria, an official said, accusing the men of belonging to the Muslim Brotherhood.

Egyptian authorities have regularly accused the blacklisted Muslim Brotherhood of launching deadly attacks since the army ousted president Mohammad Mursi in 2013, a charge denied by the Islamist movement.

Such attacks have often been claimed by radical Islamist groups as retaliation for a government crackdown against Mursi’s supporters that has left hundreds dead.

Interior ministry spokesman Hani Abdul Latif said that Tuesday’s incident occurred in Alexandria’s eastern district of Montaza.

“Three terrorist elements from the Muslim Brotherhood were carrying the bomb in the car they were driving when it exploded,” Abdul Latif said.

Tensions have been high in Egypt after clashes between protesters and security forces erupted in Cairo and Alexandria on Sunday as the country marked the fourth anniversary of the 2011 uprising that toppled ex-strongman Hosni Mubarak.

Nineteen people were killed in Cairo, mostly Islamist protesters, in Sunday’s clashes, while one was reported dead in Alexandria.

Police arrested 516 supporters of the Muslim Brotherhood on Sunday, in the biggest sweep since President Abdul Fattah Al Sissi came to power in June.

Mursi was ousted in July 2013 by then army chief Al Sissi after millions protested against the Islamist’s one-year rule.