EXPLAINER: Why are people protesting across Colombia?

People shout as they hold a sign with a message that reads in Spanish: "Stay strong Colombia", on Bolivar Avenue in Caracas, Venezuela, Saturday, May 8, 2021, during a gathering of Venezuela government supporters to show solidarity with the protesters in Colombia who were against a proposed tax plan, since withdrawn by the president. (AP Photo/Matias Delacroix)

A woman holds a national flag marked with a message that reads in Spanish: "Strength to continue", joining Christians in prayer asking for the violence during anti-government protests to stop, in Bolivar Square in Bogota, Colombia, Saturday, May 8, 2021. The protests started on April 28 over proposed tax increases on public services, fuel, wages and pensions, but it has morphed into a general demand for the government to pay longstanding debts to the most vulnerable in society. (AP Photo/Ivan Valencia)

Christians gather in prayer asking for the violence during anti-government protests to stop, in Bolivar Square in Bogota, Colombia, Saturday, May 8, 2021. The protests started on April 28 over proposed tax increases on public services, fuel, wages and pensions, but it has morphed into a general demand for the government to pay longstanding debts to the most vulnerable in society. (AP Photo/Ivan Valencia)

Venezuelan government supporters gather on Bolivar Avenue in Caracas, Venezuela, Saturday, May 8, 2021, during a gathering to show solidarity with the protesters in Colombia who were against a proposed tax plan, since withdrawn by the president. (AP Photo/Matias Delacroix)

Christians kneel in prayer asking for the violence during anti-government protests to stop, in Bolivar Square in Bogota, Colombia, Saturday, May 8, 2021. The protests started on April 28 over proposed tax increases on public services, fuel, wages and pensions, but it has morphed into a general demand for the government to pay longstanding debts to the most vulnerable in society. (AP Photo/Ivan Valencia)

Christians kneel in prayer asking for the violence during anti-government protests to stop, in Bolivar Square in Bogota, Colombia, Saturday, May 8, 2021. The protests started on April 28 over proposed tax increases on public services, fuel, wages and pensions, but it has morphed into a general demand for the government to pay longstanding debts to the most vulnerable in society. (AP Photo/Ivan Valencia)

Christians gather to pray asking for the violence during anti-government protests to stop, in Bolivar Square in Bogota, Colombia, Saturday, May 8, 2021. The protests started on April 28 over proposed tax increases on public services, fuel, wages and pensions, but it has morphed into a general demand for the government to pay longstanding debts to the most vulnerable in society. (AP Photo/Ivan Valencia)

People hold a sign with a message that reads in Spanish: "Strength Colombia", on Bolivar Avenue in Caracas, Venezuela, Saturday, May 8, 2021, during a gathering of Venezuela government supporters to show solidarity with the protesters in Colombia who were against a proposed tax plan, since withdrawn by the president. (AP Photo/Matias Delacroix)

A woman joins Christians in prayer asking for the violence during anti-government protests to stop, in Bolivar Square in Bogota, Colombia, Saturday, May 8, 2021. The protests started on April 28 over proposed tax increases on public services, fuel, wages and pensions, but it has morphed into a general demand for the government to pay longstanding debts to the most vulnerable in society. (AP Photo/Ivan Valencia)

A man holds a Venezuelan flag on Bolivar Avenue in Caracas, Venezuela, Saturday, May 8, 2021, during a gathering of Venezuela government supporters to show solidarity with the protesters in Colombia who were against a proposed tax plan, since withdrawn by the president. (AP Photo/Matias Delacroix)