Since Wednesday, demonstrations were held in Bogota and other major cities, including Cali, Medellin, Barranquilla and Cartagena.
Colombians protest tax reform
Protest-linked violence reported
Looting, vandalism and clashes between police and protesters were reported in several cities. At least four people were killed in the demonstrations.
A police officer who was stabbed in the week in the city of Soacha south of Bogota died of his injuries late on Friday, according to Reuters.
Security forces used tear gas to disperse protests in some cities, local media reported.
Cali, the country's third-largest city, has seen the most violence linked to the protests.
Rights groups reported possible police abuse in Cali. But police deny the allegations, insisting they have respected human rights and followed established protocols.
"The vast majorities mobilize in peace and say no to looting. No to violence," Cali Mayor Jorge Ivan Ospina said on Twitter as he shared a video of massive protests in his city, despite a surge in COVID cases.
Ospina had called for a probe into the circumstances that led to people's death in demonstrations.
What is Colombia's tax reform bill?
The government said the reform plan is vital to stabilizing the country's finances. It was intended to raise some €5.24 billion ($6.3 billion) in extra revenue over 10 years for Colombia.