<br/>In Andhra Pradesh, a red alert has been sounded across the state and security stepped up for Chief Minister K. Rosaiah, Ministers, MPs, and other VIPs in the wake of the Maoists ambush in which over 70 CRPF personnel killed in Dantewada district of Chhattisgarh yesterday. As part of the beefed up security, special attention has been given to those known to have been on the hit list of the extremists. The check-posts and vulnerable points on the borders with other States, particularly Chhattisgarh, have been strengthened with deployment of Greyhounds, the anti-naxalite elite force, to prevent infiltration of Maoists.<br/><br/>Police deployment has also been enhanced at the state Secretariat in Hyderabad and around important Government offices in districts, especially those bordering Orissa such as Visakhapatnam, Vizianagaram and Srikakulam.