In the backdrop of violent protests by lawyers, shoot-at-sights orders were issued on Friday night in Tamil Nadu against those trying to damage public properties and create disturbance to general public. A release from the DGP's office said district SPs have been empowered to carry out the order. Appropriate action would be taken against those who try to damage vehicles or involve in other illegal activities, it said. "Some anti-social elements were using yesterday's incidents to damage public property and burn vehicles", the release said.