"Residents of St. Petersburg's consular district should contact the US Embassy in Moscow for all emergency assistance and routine services," the State Department in a Twitter post.
Russia closed down the US consulate in St. Petersburg and expelled 60 American diplomats in a reciprocal move after the United States and its allies forced out more than 150 Russian diplomats from their countries following allegations of Moscow's involvement in the poisoning of ex-Russian spy Sergei Skripal.
READ MORE: Russia Expels EU States' Diplomats in Tit-for-Tat Measures Amid Skripal Case
Russia vehemently denies any involvement in the attack on Skripal and has repeatedly offered to help London investigate the crime, but Moscow's offers of assistance have been rejected.
Aside from the US Embassy in Moscow, the US Consulates General in Yekaterinburg and Vladivostok remain open, the State Department said.
