Uttar Pradesh anti-terrorist squad (ATS) on Saturday detained a youth for threatening to blow up Miami airport in the USA.

State police chief O.P.Singh said here that the youth, identified as Utkarsh Dwivedi, a resident of state's Jalaun district, about 200 kilometres from here, had made several calls through 'voice over internet protocol' (VoIP) to the Airport authorities and threatened to blow it up.

''The youth had allegedly been duped by a US based individual from whom he had purchased bitcoins worth Rs. 70 thousand... he had lodged a complaint with the US investigating agency Federal Bureau of Investigation (FBI),'' he said.

Dwivedi was upset with the FBI for not taking any action against the person, who had duped him.

He threatened that he would attack the airport with AK 47 and grenades and kill everyone, the police official said.

The DGP said that the youth was nabbed after receiving inputs from the FBI and National Investigation Agency (NIA). ''Dwivedi had created a fake mail ID and also procured a SIM card with a fake address,'' he added.

''The youth had also threatened the FBI,'' he said.

Singh said that the youth was just over 18 years of age and had taken money from his father, who ran a voluntary organisation in Jalaun district, to purchase the bitcoin.

The DGP said that a case was registered against the youth. He was later released by the police, the section under which he was booked did not require arrest.