The United States has been added to Israel’s “no-fly” list over concerns about the increase in Omicron cases.

“Omicron is already in Israel and it is spreading fast…The fifth wave has begun,” said Prime Minister Naftali Bennett in an address to the nation on Sunday.

On Monday, Italy, Belgium, Germany, Hungary, Morocco, Portugal, Canada, Switzerland and Turkey were added to the list along with the U.S. Thus far, Israel has banned travel to more than 50 countries, according to Reuters.