BBC :

An alleged Kremlin agent offered sex for a job with an American special interest organisation she targeted, say US officials.

Maria Butina's ties with Russian intelligence make her a flight risk, a federal judge ruled, and she will be held until her trial.

A lawyer for the 29-year-old said she has been co-operating with the US government for several months.

The case is not part of the US inquiry into alleged Russian election meddling.

Ms Butina, who was arrested on Sunday, appeared for two hours on Wednesday afternoon at a US court in Washington DC.

US Magistrate Judge Deborah Robinson ruled that the government had proved there are no conditions of her release that would guarantee her return to court for trial.

She is facing charges of failing to register as a foreign agent and conspiring against the US government. She is not charged with espionage.

On Wednesday, Moscow's foreign ministry said Ms Butina's arrest was designed to undermine the "positive results" of a summit between US President Donald Trump and Russian President Vladimir Putin in Helsinki on Monday.

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