DHS Rebuffs Congressman’s Claim ISIS Infiltrating Southern Border

Rep. Duncan Hunter says he got a tip from Customs and Border Protection.

“The suggestion that individuals who have ties to ISIL have been apprehended at the Southwest border is categorically false, and not supported by any credible intelligence or the facts on the ground,” a DHS spokesman said in a statement today. “DHS continues to have no credible intelligence to suggest terrorist organizations are actively plotting to cross the southwest border.”

The tip "was from a confidential source with the Border Patrol," the source said in an email. "[It’s] more accurate to say people with known associations. Not 'fighters' in the sense folks might immediately think."

“The Congressman was conveying what he knows -- and what he was told,” Joe Kasper, deputy chief of staff to Hunter, wrote in response to the DHS denial. “It makes sense that the left hand of DHS doesn't know what the right hand is doing -- it’s been that way for a long time and we don’t expect that to change.”

Customs and Border Protection is part of DHS.

Hunter’s office declined an ABC News request to interview the congressman.

ABC News’ Jeff Zeleny and Mike Levine contributed to this report.