Clashes erupted between stone pelting youths and the security forces on Wednesday during an anti-militancy operation in Jammu and Kashmir's Anantnag district.Police sources said security forces started a cordon and search operation in Arwani village of Bijbehara area after receiving information about the presence of militants there."As the security forces started searches in the village, a mob of stone pelting youths engaged them in clashes to disrupt the operation."Security forces used tear smoke to disperse the protesters," police sources said.Meanwhile, as a precautionary measure authorities have suspended mobile Internet services in Anantnag district.