The mayor of the Colombian capital, Bogotá, has imposed a curfew to cover the entire city in response to renewed anti-government protests.
Police fired tear gas in the city on Friday to disperse crowds and there were reports of sporadic looting.
More than 250,000 people attended marches across the country on Thursday to express growing discontent with President Iván Duque’s government.
Officials say the deaths of three people will be investigated.
Colombians have taken to the streets over possible changes to the minimum wage, pension and tax reforms, and the privatisation of state companies. The government insists there are no planned pension or labour reforms and that any changes would take place in consultation with labour groups.
Protesters are also angry about alleged corruption and what some see as the government’s failure to honour a 2016 peace deal with left-wing Farc rebels amid a rise in violence.
Bogota Mayor Enrique Peñalosa announced a curfew for three districts but extended it later in the day.
“From 8pm (01:00 GMT Saturday) the curfew will go into effect in the neighbourhoods of Bosa, Ciudad Bolivar and Kennedy,” he said.
“From 9pm the curfew extends to the rest of the city. The curfews end at 6am Saturday.”