NEW : Mexico initially claims drone was theirs ; then Embassy spokesman claims otherwise . NEW : Mexico says drone crashed during operation with U.S. Rangers . U.S. authorities say they are looking into the incident . He described it as small , with a 6-foot wingspan . Rangers are routinely used to patrol the border .
NEW : Mexico initially claims drone was theirs ; then Embassy spokesman claims otherwise . NEW : Mexico says drone crashed during operation with U.S. Rangers . U.S. authorities say they are looking into the incident . Rangers are routinely used to patrol the border .