Chandigarh, June 10 -- The National Investigation Agency (NIA) on Tuesday conducted searches at 18 locations across Punjab and Haryana as part of its investigation into a terror-gangster network allegedly being operated by Pakistan-based gangster-terrorist Shahzad Bhatti.

According to NIA, the operation covered nine districts in the two states, and is linked to three separate cases involving attacks on police establishments and a high-profile grenade attack in Punjab.

Officials said the searches were aimed at identifying Bhatti's associates, facilitators and other individuals connected with the terror conspiracy.

During the raids, NIA teams questioned several persons and seized digital devices, documents and other material related to c...