KeithBinns/iStock(NEW YORK) — One American citizen was killed and two others injured during an attack just south of the Texas border in Tamaulipas, Mexico, on Saturday, a U.S. State Department spokesperson confirmed to ABC News. “We are providing them all appropriate consular assistance. We are closely monitoring local authorities’ investigation into this brutal attack,” the spokesperson said.  News of the death comes after the U.S. consulate in Nuevo Laredo, Tamaulipas province, issued a series of security alerts last Thursday and Friday because of violence in the area including gunfights and blockades on major highways. The consulate urged U.S. citizens to notify family and friends of safety, monitor local media for updates and avoid public places. This attack comes months after a separate, deadly ambush in Mexico that left nine U.S. citizens, including six children, dead in Chihuahua state. Copyright © 2020, ABC Audio. All rights reserved.