LAHORE - Management of the State Bank of Pakistan (SBP) Friday received a letter from some unknown 'terrorist(s)' with a threat to blow up the bank building, The Nation has reliably learnt. It was also written in the letter that the SBP building was among those 25 other important public buildings including the Governor's House and the Chief Minister's Secretariat that had been put on hit list of the terrorists. Superintendent Police Civil Lines Sohail Sukhera confirmed the information saying that the letter received by the SBP management, was written by unknown person (s) and police have taken all possible steps as precautionary measures including deployment of heavy contingent of the police in and around the building in addition to other important public buildings that fall within the jurisdiction of the Civil Lines Division. He said that police were taking this incident as a routine matter, as the source was yet unknown to police and the SBP management. He said that neither any banned organisation nor any militant set-up had so far taken responsibility of the threats given in the letter. The SP said that a team of senior police officers visited the SBP building and during inspection, the management has been warned to cover the week-points as security point of view. He also said that security had been beefed up near the sensitive buildings by enhancing patrolling and deploying additional police force. Sukhera said that the internal security of the state bank had also been doubled. Policemen deployed in and around the public buildings have been strictly directed to keep an eye on the suspects. All the visitors would be scanned before their entry to the buildings. Another police officer said that the incident of threatening letter to the State Bank administration had been reported to the Punjab government and the police high-ups.