NACO - Investigators were scouring the Naco, Arizona area Wednesday following the death of U.S. Border Patrol Agent Nicholas Ivie.
Ivie, 30, was killed after he and two other agents responded to a sensor hit a few miles north of the Arizona-Mexico border just before 2 a.m. Tuesday, seven miles east of Bisbee.
Authorities said it may take another day or two to process the crime scene.
During a news conference Tuesday afternoon, an FBI spokesman said they have pledged all of their resources from across the country to assist and support the investigation.
The FBI has not given answers regarding any findings so far from evidence, information about suspects, or possible connections to the failed Fast and Furious operation.
President Barack Obama called Ivie's family Tuesday to offer condolences and to express his gratitude for Ivie's "selfless service to his nation," a White House statement said.
Obama made it clear that the administration "was doing everything it could to locate those responsible."
Spokesman Brent M. Cagen with the Tucson Sector of the U.S. Border Patrol said the agents involved in the shooting are assigned to the Brian Terry Station.
Another agent involved was shot in the buttocks and ankle but is expected to be OK. The third agent involved was unharmed.
The FBI and Cochise County Sheriff’s Office are leading the investigation.
Ivie was a native of Provo, Utah and joined the U.S. Border Patrol in January 2008. An FBI spokesman said Ivie leaves behind a wife and two children.
Authorities are urging the public to report any activity they may have seen and be on the lookout for anything suspicious by calling 1-877-872-7435.
Border Patrol Agent Brian Terry was killed in December 2010 during a firefight with armed bandits.
The shooting was later linked to the Fast and Furious gun smuggling operation.
The station in Naco involved in Tuesday's shooting was recently named after Terry.