Officials: Casino fire accidental, likely started by cutting torch

LAS VEGAS (CNN) - A fire at Las Vegas' Monte Carlo Resort and Casino last week was likely caused by flying molten metal from a hand-held cutting torch being used by construction crews, the Clark County Fire Department said Thursday.

The Friday fire charred the top of two of the casino's three wings. It caused no major injuries but triggered the evacuation of visitors and employees.

At the time the blaze began, workers on the roof of the building were cutting corrugated steel products used for a walkway being installed around the interior perimeter of the roof, the fire department said in a statement.