Scuffles between protesters and security forces have picked up in Mohamed Mahmoud Street near Cairo's Tahrir Square.
An Egyptian satellite channel aired on Tuesday images of both sides throwing rocks at each other and some protesters setting fire to waste and tree branches in the street.
Meanwhile, Egypt's Health Ministry has announced that the number of injuries of the confrontations that erupted on Monday evening has reached 61.
No deaths have been reported to date, the ministry claimed.
Nineteen "troublemakers" were arrested earlier, an Interior Ministry statement said on Tuesday, adding that their attacks injured 29 police officers who were practicing utmost self-restraint to avoid casualties.
Thousands of activists rallied yesterday to commemorate the anniversary of last November's "Mohamed Mahmoud" clashes where over 40 people were killed in confrontations with security.