Security was mounted and patrolling intensified in sensitive areas across Uttar Pradesh to ensure peace during Friday prayers in view of widespread violence by those protesting against the amended Citizenship Act which has so far claimed 19 lives. As many as 3,500 personnel of central paramilitary forces and 12,000 jawans of the UP provincial armed constabulary (PAC) are on the job to maintain peace, UP DGP OP Singh was quoted as saying by PTI.