Polish Interior Minister Mariusz Kaminski said Sunday that the country is preparing for "various scenarios" for a possible influx of refugees if Russia were to attack Ukraine.

Washington has said Russia, which has more than 100,000 troops massed near Ukraine, could invade at any moment. Moscow, on the other hand, denies having any such plans.

"In connection with the situation in Ukraine, we are preparing for various scenarios. One of them is regional preparations related to a possible influx of refugees from Ukraine," Kaminski said in a tweet published Sunday.

The mayor of the eastern Polish town of Ciechanow said on Saturday that he was asked by his regional government to prepare accommodation for possible refugees.

"We were asked to indicate the list of accommodation facilities for refugees, the number of people it would be possible to accommodate, the costs involved and the time for adaptation of buildings with a recommendation of up to 48 hours," Krzysztof Kosinski tweeted.

Poland is home to between 1 and 2 million Ukrainians, many of whom came to the country to work.

A spokesperson for the interior ministry declined to provide more details about the preparations taking place, referring to Kaminski's tweet. Ciechanow's town hall did not respond to Reuters' request for comment.

In late January, Poland's Deputy Interior Minister Maciej Wasik said Poland was bracing for up to 1 million Ukrainian migrants.