NEW YORK (CBSNewYork) — Traffic was snarled on one of New York City’s busiest roadways for several hours after a nasty crash involving a sanitation truck Saturday night.

Authorities say a Department of Sanitation truck struck the overpass on the westbound side of the Belt Parkway near Merrick Boulevard in Queens shortly after 8:15 p.m.

The impact of the crash caused the rear of the truck to separate and strike at least two other vehicles.

The FDNY says four people were hurt, one seriously. They were all rushed to NYC Health+Hospitals/Jacobi.

All westbound lanes in the area were closed for several hours but have since reopened with residual delays.

Officials say there was no structural damage to the overpass, but add commercial trucks were not supposed to be on the Belt Parkway in the first place.

Department of Transportation officials were investigating the collision.