The 'Jana Satana Pada Yatra' organised by the Joint Opposition took an unexpected turn this afternoon when the protesters launched attack on an ambulance.
Video footage of the incident shows protesters hitting the sides of the ambulance, while Police try to mediate.
The 'Jana Satana Pada Yatra' commenced from Peradeniya this morning. The five-day protest march is due to end August 1.
Former President Mahinda Rajapaksa, his son MP Namal Rajapaksa - on whom a warrant was issued in court this morning, and several MPs of the Joint Opposition are participating.