Gunman Stephen Paddock fired "incendiary" bullets at a 43,000-barrel jet fuel tank near McCarran International Airport during last week's mass shooting on the Las Vegas strip, according to a new report.
Sources told CNN that the ammunition, which burns rapidly and causes fires, was found inside Paddock's 32nd-floor hotel room at the Mandalay Bay Resort and Casino and near the fuel tank.
Officials last week said that rifle rounds had hit the fuel tank, but they did not disclose if Paddock was specifically targeting the tank or that he was using incendiary bullets.
The sources said incendiary bullets were recovered near the tank, but they did not say if those were the rounds that struck the tank.
Officials last week downplayed the potential of an explosion being caused by gunfire, noting that jet fuel is designed to withstand a brief exposure to flame without igniting.
They did not reference incendiary bullets or if those would have increased the chances of an explosion.
Paddock killed 58 people and wounded nearly 500 more when he opened fire on the Route 91 Harvest music festival from his hotel room at the Mandalay Bay on October 1. He died from a self-inflicted gunshot wound.
Watch the report above.