PESHAWAR An American national, held on charges of spying for the US, was released on Wednesday by the local authorities. Local security staff posted on Pak-Afghan border in the turbulent Khyber Agency had rounded up the alleged female spy Nicole Tung who claimed to be working for the US government but failed to show any proof including passport or valid visa document. Despite pressure from the US Consulate officials, she was handed over to the Joint Investigative Team but finally the pressure from the US proved effective and she has been released and charges against her have been dropped, officials claimed. American officials were present to receive her on her release. She was arrested 10 days back from Torkhum along with a Swiss national Mathias and a local Aftab Hussain. Following this development, US officials were trying to secure her release employing every tactic including threats, sources close to local authorities revealed. On November 3 US officials including Major (Retd) Sarzameen visited the offices of the Political Agent Khyber Agency to get her released. They were told that the person in custody had been shifted to Special Branch for further investigation. Shafiullah Wazir, the Political Agent, had refused to oblige and told Americans to let the legal process take its course. The Special Branch had constituted a joint interrogation team to interrogate the spy. But, exactly one week after arrest, the JIT silently shifted all the detainees to Khyber House from where they were released. All of the released persons have been moved to US Consulate Peshawar.