Mexican authorities are remaining tight-lipped about a shootout that took place in a small town just southwest of Matamoros.
It all happened in the Ejido La Venada around noon on Thursday.
Mexican officials have not released any information but the American Consulate in Matamoros issued an alert via Twitter.
According to the alert, consulate officials received reports of ongoing gunfights and roadblocks.
No other details were available but the consulate ended the alert about an hour later saying the scene was being cleared.