The U.S. has ordered 12 Russian diplomats on the United Nations to depart by early March amid the warfare in Ukraine, Russia's U.N. Ambassador Vassily Nebenzia instructed reporters Monday.

The U.S. cited nationwide safety issues in its choice, calling the Russian diplomats "intelligence operatives" who have been "partaking in espionage actions which might be opposed to our nationwide safety," Reuters reported.

Nebenzia promised a Russian response to the upcoming expulsion "as a result of it is diplomatic observe."

The diplomat expulsion is a part of an ongoing back-and-forth between the U.S. and Russia that started even earlier than the Ukrainian invasion.

Earlier this month, Russia expelled Bart Gorman, who had been the second-in-command on the U.S. Embassy in Moscow. Russian officers additionally stated in December final 12 months that U.S. diplomats who had been in Russia for greater than three years have been ordered to depart by the top of that month.

And in August 2021, officers in Washington ordered two dozen Russian diplomats to depart by early September, Newsweek beforehand reported. It was not instantly clear what retaliatory measures, as hinted by Nebenzia, Russia might soak up response to this most up-to-date ousting.

Russian Diplomats Expelled
The U.S. has ordered 12 Russian diplomats on the United Nations to depart by early March amid the continuing battle in Ukraine, in response to Russia's U.N. Ambassador Vassily Nebenzia. Nebenzia speaks in the course of the United Nations Safety Council assembly at United Nations headquarters on February 28, 2022, in New York Metropolis.Kena Betancur/AFP through Getty Photographs

Olivia Dalton, a spokesperson for the U.S. Mission to the U.N., confirmed the expulsion in a Twitter thread Monday afternoon.

"Right this moment's motion has been within the works for a number of months," she tweeted.

Dalton didn't elaborate additional on the alleged "espionage actions."

Throughout a U.N. Safety Council assembly centering on Ukraine, Nebenzia described the expulsion as "hostile" and stated that it breached U.S. obligations because the host nation for the New York U.N. headquarters, Reuters reported.

When requested about Nebenzia's feedback throughout a briefing Monday, White Home press secretary Jen Psakiresponded: "​​I believe the hostile act is committing espionage actions on our personal soil."

U.S. Deputy U.N. Ambassador Richard Mills additionally responded to Nebenzia's feedback.

"These diplomats which have been requested to depart the USA have been engaged in actions that weren't in accordance with their tasks and obligations as diplomats," Reuters quoted him as saying.

He added that the diplomats have been requested to depart "so they don't hurt the nationwide safety of the host nation," Reuters reported.

Mills and Dalton each stated individually that the choice didn't violate the headquarters settlement cited by Nebenzia.

Newsweek has reached out to Dalton for added remark.

Replace 2/28/22, 5:15 p.m. ET: This story has been up to date with further data.