LAS VEGAS (KLAS) — Black smoke rising in the skies of the Las Vegas valley on Tuesday had many residents asking what caused it.

Reports began coming into that the smoke was visible at approximately 12:30 p.m. on Tuesday. Heavy black smoke was visible above the northeast Las Vegas valley.

According to the Clark County Fire Department, at around 12:12 p.m. on April 25, firefighters were called to a junkyard on East Hammer Lane. Upon arrival, they found a large crushed pile of approximately 50 vehicles on fire.

Crews were set up along the south, west, and east side of the fire to prevent it from spreading.

According to CCFD, the main body of the fire has been knocked down. There were no injuries reported.

Fire suppression units from CCFD, North Las Vegas Fire Department, and Nellis Air Force Base all responded, including 6 engines, 3 trucks, and a water tender, which included a total of 47 personnel.

The cause of the fire and damage estimate is unknown at the time of publication.

This is a developing story. Stay with for details as they become available.