US urges Americans living or traveling in Russia to vacate 'immediately'

• The US on Saturday warned Americans traveling to or in Russia to vacate immediately.
• The advisory says Americans risk potential harassment "by Russian government security officials."

The US State Department on Saturday warned Americans to "depart Russia immediately" as the country continues to engage in war with Ukraine.

In an advisory with a level-4 rating, the US Embassy & Consulates in Russia said there are limited commercial flight options available to transport Americans out of the country.

"If you wish to depart Russia, you should make arrangements on your own as soon as possible," the notice says. "If you plan to stay in Russia, understand the U.S. Embassy has severe limitations on its ability to assist U.S. citizens, and conditions, including transportation options, may change suddenly."

The advisory says Americans are at risk for potential harassment "by Russian government security officials."

The situation along the Ukraine-Russia border is "dangerous and unpredictable," the advisory says.

The US has levied a series of harsh economic sanctions on Russia designed to make a dent in its critical cash reserves and cut the country off from access to financial institutions.

The sanctions have made it difficult to acquire cash, and the notice from the US Embassy & Consulates in Russia says Americans can expect credit and debit cards to be declined as well.

"U.S. citizens should make an alternative plan for access to money and finances if remaining in Russia," the advisory says.

Airlines are canceling flights into and out of Russia, according to the advisory. Across various parts of Russia, airspace is restricted and several airports have closed due to the conflict.

This is a developing story. Please check back for updates.