The protests come as the country reels from bombing attacks in the southwest and attempted assassination of a senator.

Colombian senator Miguel Uribe, in the running to join next year’s presidential race, is in a critical condition in hospital after being shot at an event in Bogota, allegedly by a teenager.

The sudden surge of violence has many Colombians wondering if the country is headed back to a darker time.“It’s a painful memory of where we come from,” says Colombia Risk Analysis director Sergio Guzmán.

Miguel Uribe Turbay, a conservative presidential hopeful, remained in “extremely serious” condition on Sunday, a day after being shot.

Top U.S. and Chinese officials will sit down in London on Monday for talks aimed at defusing the high-stakes trade dispute between the two superpowers that has widened in recent weeks beyond tit-for-tat tariffs to export controls over goods and components critical to global supply chains.

Colombia’s unions have begun a 48-hour strike to support a referendum proposed by President Gustavo Petro to let voters to decide whether to overhaul the country’s labor laws.

This is the kind of moment that feels really pivotal, and it’s frankly a very dangerous moment in Colombian politics,” said Elizabeth Dickinson, Senior Colombia Analyst at Crisis Group International.