Thousands marched through the streets of Santiago as part of a general strike in protest against Chilean President Sebastian Pinera.
Footage shows thousands of protesters marching through the streets with flags and banners requesting a new Constitution.
Protesters confronted the police when they protested in front of the government palace.
The demonstrations, which originally started over a hike in metro fees has now spiraled into anti-government clashes, with police using rubber bullets, tear gas and water cannons against protesters. More than 20 people have died, and nearly 200 have sustained eye injuries.
The government has announced plans to change the dictatorship-era constitution, but protesters have expressed skepticism.