Russian Foreign Minister Sergei Lavrov told his US counterpart Mike Pompeo today that the arrest of a Russian gun rights enthusiast on espionage charges in the United States was "unacceptable", his ministry said.
US prosecutors say Maria Butina, 29, exploited her close links with the powerful NRA gun lobby while posing as a visiting graduate student to endear herself with senior Republicans, guided by one of Russian President Vladimir Putin's major political supporters, Alexander Torshin.
She was charged this week in Washington of acting illegally as an unregistered agent for the Russian government while she lived in Washington over the past three years with her boyfriend, a veteran Republican operative.
In a telephone call with Pompeo, Lavrov "stressed that the actions of American authorities who arrested the Russian citizen Butina based on false accusations is totally unacceptable," the foreign ministry said in a statement.
Lavrov said Butina must be released "as soon as possible," according to the statement.
The two diplomats also "exchanged views on ways to develop the relationship between our countries with the objective of normalising them".
Butina's arrest on Sunday added to the political turmoil in Washington over Moscow's meddling in the 2016 presidential election and allegations that President Donald Trump's campaign collaborated with the Russians.
The arrest was announced Monday hours after Trump finished a summit and a press conference with Putin in Helsinki, Finland, where the US leader rejected the US intelligence community's verdict that the Russians interfered to support him over Hillary Clinton in the 2016 race.
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