MARLBORO — A collision between two tanker trucks closed Route 9 in Monmouth County on Friday morning.

Marlboro police in a message posted to social media said the crash at Newman Springs Road (Route 520) after 9:30 a.m. created a 3,000 gallon fuel spill and the evacuation of some nearby businesses.

Marlboro police said one of the drivers suffered a minor injury and was receiving treatment. The department has not disclosed the number of injuries or the circumstances of the crash.

The closure of Route 9 created heavy volume on Union Hill Road and Tennant Road as well as Route 18 as drivers tried to get around the closure.

Kristin, a worker at Salon Centric on Route 9 at Union Hill Road, said her salon has not been evacuated but her husband's workplace, Moe's Southwest Grille, located just north of her on Route 9, was closed.

She said it took one of her clients 45 minutes to get to the salon instead of the usual five minutes.

Bud McCormick, who drove through the area right after the crash, said there was a very strong odor of fuel oil.