KATHMANDU, Feb. 24 (Xinhua) -- Clashes erupted between Madhesi People's Rights Forum (MPRF) and the Communist Party of Nepal (CPN)in two southern Nepali Terai plains cities, Nepalgunj and Siddharthanagar, on Saturday.

　　In Tribhuvan Chok of Nepalgunj, a southern Nepali Terai plains city some 370 km west of capital Kathmandu, MPRF members said the clashes occurred after CPN (formerly known as guerrilla) interfered a mass meeting organized by MPRF. However, CPN members alleged that the clashes erupted after their motorcycle rally was obstructed by MPRF.

　　In the clash two vehicles and CPN local office were torched. Police used teargas to contain the situation.

　　In another Terai city of Siddharthanagar, Rupandehi district, which is some 170 km southwest of capital Kathmandu, MPRF on Saturday set two CPN buses ablaze. The buses were for ferrying CPN members and supporters to Butwal where CPN chairman Prachanda is scheduled to address a mass gathering. The activists of both sides clashed with each other, compelling police to intervene.

　　Over a dozen people were injured, one policeman critically. The policeman, Sub Inspector Gunj Bahadur Gurung, was injured when a gun went off accidentally in the chaos.

　　On Friday, at least 15 persons were injured when activists of MPRF clashed with CPN in Siddharthanagar.