New Delhi: Security of Tihar jail has been stepped up after intelligence inputs were received that the high profile prison may be targeted by terror outfits to free jailed terrorists.

The high-security prison, which already has a three-layer security apparatus, was today enhanced further after the inputs.

Delhi Police is already on a high alert after a Home Ministry advisory alerting about a possible LeT strike in the city.

"Following the high alert in the capital, the security of the jail has been increased by several notches. No risk will be taken as far as the security of the inmates and the prison is concerned," DIG Mukesh Prasad said.

"Tihar houses many hardcore terrorists and other high-profile inmates, their security remains our priority. There are reports that attacks may be carried out to release Pakistani terrorist lodged in here. Security has been enhanced and tight vigil is being kept on every movement within and outside the jail," a jail-based source said.

Tihar jail currently houses many terrorists and politicians. Ex Haryana CM Om Prakash Chautala and Sahara chief Subrata Roy are amongst other high-profile personalities currently lodged in the high-security prison.