As members of Congress pressure President Joe Biden to extend the Aug. 31 deadline for withdrawing U.S. troops from Afghanistan in order to evacuate more allies, some lawmakers are highlighting the threats that Afghan interpreters and Special Immigrant Visa applicants face.

“The Taliban will let American citizens in. But if they see Afghan interpreters that have their SIV applications, sometimes they’re turned away. Sometimes, more grimly, they are returned to their homes, where they behead their family and then behead them,” said Republican Texas Rep. Michael McCaul, ranking member on the House Foreign Affairs Committee, at a bipartisan press conference on Wednesday.