TULSA, Okla. (AP) — No injuries have been reported after a train derailed early Thursday morning in Tulsa.

Officials with the Cherryvale, Kan.-based South Kansas and Oklahoma Railroad notified Tulsa police just before 1 a.m. Thursday that five railcars carrying cement veered off the tracks near an intersection in north Tulsa.

The Tulsa World reported crews were able to clear the detached cars and no substance spills were reported. Police say traffic was affected for about three hours.

The cause of the derailment is under investigation.