View of a shopping center following an explosion inside the building which -according to authorities- left one dead and eleven injured, in Bogota. Pic/AFP
View of a shopping center following an explosion inside the building which -according to authorities- left one dead and eleven injured, in Bogota. Pic/AFP

One of the busiest shopping centers in Colombia's capital is being evacuated after a strong explosion that reportedly injured five people.

Witnesses told local media that the blast happened in a second-floor bathroom at Centro Andino in the heart of Bogota's tourist district.

Authorities have yet to confirm the reports of casualties. Several ambulances and firetrucks are on the scene.

Bogota has seen dramatic improvement in security over the past decade as the country's long-running conflict has wound down, but the capital remains vulnerable to attacks from the nation's second largest rebel group. The National Liberation Army in February claimed responsibility for a bombing that killed one police officer and wounded 20 more people.