County Fire Chief Anthony Marrone said a short time after crews arrived, perhaps around 2:10 p.m., an explosion occurred, killing a 19-year firefighter.

LOS ANGELES — No one knew the burning construction vehicle could become a bomb.

In June, firefighter Andrew Pontius was killed in an explosion while battling a tractor fire in Littlerock on June 14. He was a 19-year veteran with the LA County Fire Department. California Los ...

County Fire Chief Anthony Marrone said a short time after crews arrived, perhaps around 2:10 p.m., an explosion occurred, killing a 19-year firefighter.