UpdateBrazilian police fire tear gas on Sao Paulo subway strikers ahead of World Cup
Subway strikers in Sao Paulo threaten chaos for World Cup as union vows to continue stoppage that has caused gridlock in Sao Paulo regardless of legal ruling

Police in Sao Paulo fired tear gas on Monday to disperse protesters supporting a subway strike that has unleashed transport chaos three days before the Brazilian mega-city hosts the World Cup kick-off.
A group of about 150 protesters set fire to piles of garbage to block a central street in the Brazilian business hub, prompting some two dozen riot police to fire stun grenades and then tear gas to disperse them.
Watch: Sao Paulo strikers and protesters clash with police ahead of World Cup
The demonstrators were backing a five-day-old strike by subway workers that has posed a major headache for the sprawling city of 20 million people ahead of Thursday’s opening match between Brazil and Croatia.
Demonstrators from various activist groups shouted “No to repression!” before police broke up the protest. Several helicopters could later be seen hovering overhead.