Islamic State propagandists are becoming “more overt” in their attempts to recruit fighters in Latin America, raising concern that the group will spread to the Western Hemisphere even as it loses ground in Iraq and Syria.

“ISIS and its sympathizers are growing more overt in Latin America,” Sen. Joni Ernst, R-Iowa, wrote to President Obama in a Monday letter. “Their increased use of messaging in Spanish and Portuguese, coupled with calls for terror in the region, exemplify ISIS’ unwavering determination to change and imbed in new surroundings.”

Ernst, a member of the Senate Armed Services Committee, sent the letter in advance of Obama’s trip to Peru at the end of the week. He’s traveling for an Asia Pacific Economic Summit that will be dominated by talk of trade deals and other issues, but Ernst wants him to prioritize national security.

“With ISIS setting its sights on global expansion, and a history of Islamic extremism in the region, we cannot afford to continue turning a blind eye to these threats emerging right here in our own hemisphere,” Ernst wrote.

Terrorist groups have been developing organizations in South America for years, as governments have struggled to control their own countries in the face of opposition from drug cartels, and Arab immigrant populations have provided a recruitment base.

Hezbollah, a Shiite-terrorist group sponsored by Iran, was recognized as the dominant terrorist threat in the region after the 9/11 attacks, but the Islamic State has made inroads more recently. READ MORE