A small group of masked youth were trying to break through barbed wire near the prime minister's office and pelting security forces with stones and plastic bottles. The main group behind the protests in Lebanon has called for the resignation of the Lebanese environment minister over the country's garbage crisis and says it is giving the government 72 hours to begin responding to its demands. A spokeswoman for the "You Stink" group says the group will escalate its protest actions by Tuesday evening if the government does not respond. Thousands of people are gathering amid tight security in downtown Beirut, ahead of a major rally to protest government corruption and the country's dysfunctional political system. At least two or three armored personnel carriers were deployed around the prime minister's office Saturday. [...] the government's failure to resolve the crisis has evolved into wider protests against a political class that has dominated Lebanon since the end of the country's civil war in 1990.