As many as six cases were registered in connection with stone-pelting that took place on Saturday night at Old Hubli police station leaving four policemen injured in Karnataka's Hubli, said a police official on Sunday. 40 persons involved in the violent act have been arrested and a probe into the matter is underway.

Speaking to ANI, Hubballi-Dharwad Police Commissioner Labhu Ram said, "Last night, a case was registered at Old Hubli PS, where a complaint was filed against a person for uploading a video on social media; the accused was arrested."