The mayor of the Colombian capital has imposed a curfew to cover the entire city after renewed anti-government protests.<br /><br />Police fired tear gas in the city on Friday to disperse crowds and there were reports of looting.<br /><br />This footage shows hundreds of university students banging pots and pans and holding signs criticising the government.<br /><br />One sign read: "This government is more toxic than my ex."<br /><br />The demonstration took place just before the curfew came into effect. <br /><br />President Iván Duque has said he will launch a "national conversation" next week to try to ease tensions.<br /><br />More than 250,000 people attended marches across the country on Thursday to voice anger at the government.