A crash involving a diesel truck led to explosions and a fire on the 10 Freeway in Montclair late Tuesday, forcing the closure of the freeway for several hours.

The California Highway Patrol received a report of a crash and a semi truck on fire at 11:12 a.m. on the westbound 10 Freeway at Monte Vista Avenue.

Witnesses and police reported seeing several explosions and lanes of the freeway on fire, according to dispatch logs. A helicopter landed on the westbound side of the freeway at 11:50 a.m. to take at least one person to the hospital.

At 12:27 a.m., the CHP completely shut down both sides of the freeway at Monte Vista, according to logs.

The CHP reopened lanes at 6:21 a.m. and canceled a Sig Alert.

- Staff report