It alleges Mr Gupta was directed by the official to contact an associate in the US about potential assassination plans. Mr Gupta, it says, had intended to meet a hitman who could murder his target in New York City. Instead, court documents say, the source introduced him to an undercover law enforcement officer who said he would assassinate the target for $100,000 (£79,000). Mr Gupta paid $15,000 upfront via an associate on 9 June, the indictment alleges.Authorities in the Czech Republic arrested Mr Gupta on 30 June shortly after US prosecutors released an initial indictment against him. They are still detaining him at the US’s request, according to court documents.