A Colombian right-wing opposition senator and candidate to next year's presidential election was in intensive care Saturday after being shot during a campaign event in Bogota, authorities said.

A video circulating on social media shows 39-year-old Miguel Uribe giving a speech in front of several people when gunshots suddenly ring out.

In other images he appears slumped against the hood of a white car, smeared with blood, as a group of men try to hold him up.

Media reported the suspected shooter was a teenager who had been arrested.