Supporters and opponents of ousted Egyptian President Mohamed Morsi clashed in central Cairo on Monday, hurling stones and firing birdshot and fireworks at each other, witnesses said.
The state news agency said one person was killed from a gun shot to the chest, while 21 people needed hospital treatment, the head of the paramedics said.
Blood stains and broken glass littered the pavement between the dueling sides, and injured people were whisked away from the clashes on motorbikes in the worst political violence in Cairo since July 16, when seven died in confrontations.
The state news agency said 20 “troublemakers” were arrested, without giving details if they were supporters or opponents of the ousted president.
Police fired teargas to break up the crowds and Morsi’s foes said the security forces were clearly on their side.
Witnesses said hundreds of young men clashed as backers of Morsi’s Muslim Brotherhood movement appeared to try to march on Tahrir Square, epicenter of mass demonstrations that led Egypt’s army to oust the elected Islamist leader on July 3.
“They fired on us with birdshot and pistols. They tried to overrun the square.” said Tarik Sabir, 41, an employee in a petrol company, who was wounded in the thigh by birdshot.
As dusk fell, the clashes faded and Morsi’s opponents returned to their sit-in at Tahrir, blowing whistles triumphantly and chanting “We saved the square!”
Tahrir Square has been a focal point for demonstrations since mass protests there led to the downfall of U.S.-backed strongman Hosni Mubarak in February 2011.
Two people were killed in separate clashes between pro and anti-Morsi protesters in the Nile Delta city of Kalubia, a Health Ministry official told Reuters.
Around 100 people have died in violence since the downfall of Morsi earlier this month — most of them Muslim Brotherhood supporters.