NEW: Per law enforcement source, a group of suspected cartel gunmen armed with rifles & body armor were seen on cameras crossing illegally into the Fronton, TX area in the RGV Saturday night. Elite Border Patrol BORTAC agents were called out & searched area, but found nobody. pic.twitter.com/9GuhQngPKj

— Bill Melugin (@BillMelugin_) August 8, 2023