Sri Lankan Prime Minister Mahinda Rajapaksa resigned on Monday after dozens of people were hospitalised when his supporters armed with sticks and clubs attacked protestors. The country has suffered months of blackouts and dire shortages of food, fuel and medicines in its worst economic crisis since independence, sparking weeks of overwhelmingly peaceful anti-government demonstrations. Rajapaksa’s spokesman Rohan Weliwita said the 76-year-old sent his letter of resignation to his younger brother, President Gotabaya Rajapaksa, clearing the way for a “new unity government”. “I am resigning with i…