A heavily armed Mexican Navy helicopter was spotted doing surveillance in the Texas Valley

I just saw this on the local news.

“A Mexican Navy helicopter was seen doing surveillance in Starr County. Residents of Falcon Heights… noticed a Mexican helicopter hovering over a home shortly after six o’clock last night. Witnesses say the helicopter hovered for about 15 minutes over a house where a known criminal used to live. Zapata County Sheriff Sigifredo Gonzalez Jr. says, “They had armored individuals in the chopper, open ramp, very military looking, in style and preparation.””

Um… and this was OK? The Mexican Navy is free and clear to send a heavily armed excursion into the United States?

Link to the story on KRGV.com.