According to sources, there are shots being fired at the Mexico-Texas border on the Mexican side; the shots are intended to be a nuisance to the Texas law enforcement. See below according to Breitbart:
MCALLEN, Texas—A trusted law enforcement source is reporting that shots are currently being fired on the Mexican side of the U.S. border. The shots are intended to harass the increased presence of Texas law enforcement personnel.
Source: “Shots fired south of Rincon Village from Mexico. Unknown if smugglers are f***ing with the game wardens or what the deal is.” Minutes later, more information became available.
UPDATE: Source indicates federal Fish and Wildlife agents are among the law enforcement the shooter(s) are intending to harass. Source indicates this marks the second occurrence in the area in two weeks.
Read more: Breitbart