Angry Brazilians protested in front of the National Museum in Rio de Janeiro on Monday, September 3, after a fire gutted the country’s oldest scientific institution the previous day.This video, shared on September 3, shows angry protesters gathered in front of the museum.Police in riot gear shot tear gas when a small crowd tried to enter the compound, the local media reported.The cause of the fire is yet to be determined, but media reports said that the 200-year-old historical building lacked a sprinkler system and had suffered years of financial neglect. Credit: Antonio Ferreira via Storyful