A police officer was today stabbed by protesters during fresh clashes that erupted in Darjeeling after the son of a lawmaker was arrested and a senior Gorkha Janmukti Morcha (GJM) leader's house was allegedly vandalised last night. Both protesters and security personnel were injured in the clashes. A police vehicle was also set on fire by protesters. As GJM supporters threw stones, bottles and even petrol bombs at security forces prompting them to lathi-charge and use teargas shells, West Bengal Chief Minister Mamata Banerjee called it a conspiracy and said that "insurgency groups are supporting the GJM".