WESLACO – An attack that occurred over the weekend at a U.S. Embassy in Mexico was confirmed by the state department.

This happened after warnings were issued in advance about this particular incident.

On Nov. 23, CHANNEL 5 NEWS acquired a video released by rivaling cartels in Jalisco.

In it, a threat is issued.

"There's an order to place a bomb in the U.S. Embassy, so they leave Mr. Mencho in peace," said a presumptive member of the Cartel Jalisco Nueva Generacion.

The video was released to us a week before the attack happened at the U.S. Embassy in Guadalajara.

We sent the state department a request that mentioned the cartel video threats.

Our questions about the efforts to prevent an attack were left unanswered.

The statement called the attack an "incident" it's investigating, although no injuries were reported.

It reads as follows:

"We are aware of a security incident that took place Friday night (Nov. 30) at the U.S. Consulate General Guadalajara. The Consulate was closed at the time of the incident and there were no injuries. U.S. and Mexican officials are investigating. We will provide further information as it becomes available. The consulate is open Dec. 3 with normal staffing, though routine consular appointments were canceled.

We encourage U.S. citizens traveling overseas to enroll their travel plans in the Smart Traveler Enrollment Program , so they can receive important messages about their destination(s), including timely Alerts and updates to Travel Advisories."

A former FBI agent and security expert Art Fontes tells us the incident was a small explosion.

"There were two fragmentations, grenades that were detonated on the Progreso side of the U.S. Consulate in Guadalajara. Now, there's two entrances. The entrance to the Progreso side is the area where the visa section is at. That's the Progreso side. The other side is the parking lot where the employees normally park,” Fontes explains.

Fontes believes the attack comes as cartels face added pressures along the U.S.-Mexico border. 

Their supply lines and smuggling profits are affected by Mexico's change in presidential administration, NAFTA renegotiations and heavy federal presence along the U.S.-Mexico border.

He warns this creates tension among the cartels and, as a result, makes for a volatile atmosphere for travelers in and out of Mexico.