Moscow: Because of the conflict in Ukraine and the possibility of being arbitrarily detained or harassed by Russian law enforcement, the United States has advised its citizens to leave Russia as soon as possible.

The US embassy in Moscow advised citizens to leave Russia immediately if they were residents or travelers. Due to the possibility of unjustified detentions, "exercise increased caution." Do not visit Russia, advised the embassy.

American citizens have received numerous warnings to leave Russia. President Vladimir Putin issued the most recent such public warning in September following a partial mobilization.

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The embassy claimed that "Russian security services have detained US citizens in Russia on baseless allegations, singled out US citizens for detention and harassment, denied them fair and transparent treatment, and convicted them in secret trials or without presenting credible evidence."

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"Russian authorities have launched dubious criminal investigations against US citizens participating in religious activity and arbitrarily enforce local laws against US citizens working in the religious sector."

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The Federal Security Service (FSB) reported in January that Russia has started a criminal investigation against a citizen of the United States on suspicion of espionage.