JERSEY CITY, N.J. -- Ten cars of a CSX freight train derailed Monday evening, and four of the cars fell off elevated tracks onto a vacant lot below, according to a wire service report

No injuries were reported and no hazardous materials were on board, according to Conrail spokesman Bim McGeehan.

The train, which was headed from Selkirk, N.Y. to Camden, derailed on Conrail tracks near Seventh Street.

Crews were traveling to the site and were expected to arrive sometime before 1 a.m. Tuesday, McGeehan said.

It was not immediately clear how long the cleanup would take, or what caused the derailment, he said.

Newark Avenue, a major east-west artery in the city, was closed, according to the office of Mayor Glenn Cunningham. City officials created a shuttle bus plan so students could be taken to nearby schools on Tuesday.

Students headed downtown to School 5 were asked to wait for shuttle buses at the intersection of Newark and Waldo streets. Students traveling from downtown to Dickinson High School were asked to wait for shuttles from Newark Avenue and Brunswick Street.