The Trump administration has ordered a Mexico-based radio station controlled by the Chinese Communist Party to stop operations within 48 hours.

On Monday, the Federal Communications Commission ruled that the Mexico-based radio station must end its operations for failing to disclose its ties to China. The radio station was partly owned by Phoenix TV—one of communist China’s leading propaganda outlets.

Before the FCC’s ruling, the station was taking advantage of a loophole that allows US-produced content to be broadcasted from foreign radio towers, like those in Mexico. California-based Phoenix TV produced its content locally and then broadcast it using the Mexican station to reach across the US border.

The FCC claimed that they denied a license for the Mexico-based station, XEWW-AM because it “failed to include in their application a key participant, Phoenix Radio, which produces the Mandarin programming in its studio.” Phoenix used its Mexico station to spread Chinese propaganda in Southern California.

Chinese-owned Phoenix TV exploited Mexican radio towers to bend US laws that prohibit the dissemination of foreign propaganda in the country. The FCC’s recent ruling shows that the Trump administration is seeking to police these types of foreign outlets more aggressively.

In April Sen. Ted Cruz (R-TX) led a charge to shut down the Mexican station over its ties to Phoenix TV. He said the FCC’s ruling sends an important message to the world that the United States will not allow the Chinese communist regime to exploit FCC loopholes and spread its bent propaganda using America’s airwaves. “More importantly, this decision is a critical step in countering the Chinese Communist Party’s efforts to control what Americans see, hear, and ultimately think,” Cruz added.