Four Americans caught in horrific Mexico highway pileup that killed at least 10

Four Americans were reportedly caught in a fiery multi-vehicle crash in Mexico that left at least 10 people dead and about 10 others injured. 

The massive pileup happened Sunday after a tractor-trailer crashed into multiple vehicles on a highway in the western state of Jalisco, according to the Secretariat of Security and Citizen Protection of Nayarit. 

While the agency reported 10 deaths, Mexico's Army, Air Force and National Guard said nine people were killed.

Jalisco Civil Protection told Reuters that four Americans suffered minor injuries and were transported to a local hospital.

EIGHT BELIEVED DEAD AFTER B-52 CRASHES SHORTLY AFTER TAKEOFF FROM EDWARDS AIR FORCE BASE

"Four patients in minor condition, all U.S. citizens, were transferred to the Arboledas Hospital in Guadalajara by a private ambulance from the highway," Jalisco Civil Protection said.

Reuters reported that two of those killed were minors.

Another two of the injured were identified as National Guard members who suffered serious injuries and were taken to a hospital in Guadalajara, according to Reuters. 

Videos circulating on social media appeared to show several vehicles engulfed in flames along the highway connecting Guadalajara and Tepic, sending multiple plumes of black smoke into the air. 

MISSOURI SKYDIVING PLANE CRASH THAT KILLED ALL 12 ABOARD IS A 'DEVASTATING LOSS,' COMPANY SAYS

According to Mexican officials, the crash happened when a tractor-trailer apparently suffered a brake failure and slammed into a line of vehicles that had stopped because of an earlier accident. 

"According to initial reports, a trailer reportedly suffered a failure in its braking system and ended up crashing into several vehicles that were stopped due to a prior incident," Mexico's Army, Air Force and National Guard said in a post on X. 

POPULAR FLORIDA SOCIAL MEDIA INFLUENCER KILLED IN DRIVE-BY SHOOTING WHILE INSIDE LUXURY SUV

The initial accident reportedly involved a rear-end collision between two tractor-trailers. As emergency crews responded, a third tractor-trailer crashed into the scene, according to the Secretariat of Security and Citizen Protection of Nayarit. 

"As a result of this second impact, three private vehicles and two tractor-trailer trucks were completely destroyed by the fire," the authorities said. "Additionally, two other private vehicles and an official Dodge Charger unit belonging to the National Guard sustained material damage. "

Firefighters later extinguished the blaze, officials said. 

Local outlet El Financiero reported that the driver of the tractor-trailer was detained by the National Guard. 

Reuters contributed to this report.