Colombian unions, student groups and other protesters were marching on Thursday to insist the government maintain the minimum wage for young people and the universal right to a pension, even though the government says those are not part of reform plans.
As tens of thousands of marchers converged on Bogota's central square and other meeting points, blockades closed some mass transit stations. In the northwestern neighborhood of Suba, police fired tear gas in an attempt to reopen a station, while some protesters blockaded roads with dumpsters.
Seven police officers were injured in the city of Cali, where several buses were vandalized, the police reported.