US authorities have revoked more than 600 visas of foreigners in one month in a crackdown on “birth tourism,” Secretary of State Marco Rubio said.

In a statement posted on X, Rubio accused the organizers of such schemes of abusing US immigration law and announced that the US authorities intend to completely stop such practices.

"American citizenship is not for sale. But elaborate birth tourism rings are profiting off the exploitation of America's laws- coaching foreigners to defraud the U.S. visa system, arranging travel and housing, and even forging documents, all to enable foreign nationals to obtain citizenship for their children," Rubio wrote.

According to him, the US State Department established a Birth Tourism Prevention Task Force to review the activity of visa holders, dismantle illegal birth tourism networks, and put an end to the abuse of American laws.

“In just one month, the Birth Tourism Prevention Task Force has taken action to revoke more than 600 visas from foreign nationals across the globe,” the US Secretary of State added.

Rubio emphasized that the US State Department “will use all available tools to dismantle birth tourism networks and defend the integrity of U.S. citizenship.”