evidence: - Thousands of protesters took to the streets of Sri Lanka after months of unrest over President Gotabaya Rajapaksa's handling of the country's economic crisis - The island nation of 22 million people has been mired by lengthy blackouts, acute food and fuel shortages and surging inflation in its most painful downturn on record - The parliament speaker says Mr Rajapaksa will step down on 13 July - The private home of Prime Minister Ranil Wickramasinghe in Colombo was under siege and set on fire just hours after protesters stormed the president's official residence in the nation's capital - Wickramasinghe had earlier offered to resign and make way for an all-party unity government - Both leaders have reportedly moved to secure locations - At least 39 people, including two police officers, have so far been injured and hospitalised during the protests, hospital sources told Reuters