DSP Bishnu Hari Koirala at District Police Office, Jumla, said clashes ensued at Jumla Multiple Campus, airport, Chhinasaghu and Traffic Office among others places after agitators defied curfew order.
The injured are undergoing treatment at Karnali Institute of Health Sciences.
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Police lobbed five shells of teargas in Chhinasaghu and arrested two protesters.
Life in the district has been thrown of order following curfew since three days.
