Protests by students and worker unions in several Colombia cities turned violent Thursday, including an attack against a police officer in Bogota and the disappearance of three people.
Colombia state attorney Nestor Martinez said Friday authorities are trying to identify those who threw an "incendiary bomb" at the officer. When they are found, they will be charged with attempted homicide, RCN radio reported.
A tweet by the Metropolitan Police of Bogota said the officer, Oscar Ballesteros, was not hurt. Ballesteros said he and other officers quickly put out the flames.
Authorities are also examining video footage to investigate a vehicle running into a woman who was hit as she became trapped in the middle of the demonstration. Police are trying to determine if the driver committed a crime or was just trying to get away, Martinez said, according to RCN.
Students in other areas of Colombia also took part in protests.