Left-wing protesters in Manila clashed with riot police on Monday ahead of the Philippine president's final state of the nation address.
Some of the approximately 4,000 drenched protesters started to push away the metal cargo containers and iron railings blocking them from getting close to the House of Representatives in suburban Quezon city, where President Benigno Aquino III was to deliver his speech later on Monday, police said.
At least three policemen and 16 protesters were injured when authorities used water cannon to push back the activists, who hurled rocks and bottles at the police, according to police and Red Cross volunteers.