Several people were injured during Saturday's attack, including political activists known for frequenting the cafes, witnesses told al-Shorouk newspaper. They said the attackers fired birdshot and launched fireworks.
Hazemoun is comprised of former presidential candidate Hazem Salah Abu Ismail's supporters, and Ahrar is a self-styled vigilante youth group that promotes public virtue, Egypt Independent reported.
Wisconsin business offering 'therapeutic cuddling' forced to close
Police: Sword-wielding man demanded free tacos