There was no evidence of an attack that led to the on-duty death in November of a U.S. Border Patrol agent, the FBI said on Wednesday in the case that prompted President Donald Trump to renew calls for a border wall with Mexico.


Agent Rogelio Martinez, 36, died of blunt-force trauma, the cause of which has not been determined, an autopsy report released late on Tuesday showed.

"To date none of the more than 650 interviews completed, locations searched, or evidence collected and analyzed have produced evidence that would support the existence of a scuffle, altercation, or attack," the Federal Bureau of Investigation El Paso Field Office said in a statement.

Martinez and another agent, who survived, were in sparsely populated Culberson County, about 130 miles (210 kms) southeast of El Paso, when they suffered head injuries and broken bones. Agent Stephen Garland, found in a culvert with Martinez, has trouble remembering the incident, according to local media reports.

(Reporting by Julio-Cesar Chavez; Writing by Jon Herskovitz)