New Delhi, Feb. 19 -- The Punjab Secretariat received a bomb threat e-mail on Thursday, prompting quick security response and a complex-wide search, news reports said.

Authorities carried out an anti-sabotage check at the Punjab Secretariat complex, which also houses the Punjab and Haryana High Court, reported news agency PTI.

The Secretariat is located at Sector-1 in Chandigarh, which is a high-security zone.

Police, fire brigade officials, bomb squads, dog squads and an ambulance were rushed to the Secretariat building but even after an extensive search operation, no suspicious material or explosives were found, officials told PTI.

Although there is no evidence of there being a threat, police have nevertheless stepped up security ar...