Crews spent much of Monday night cleaning up the mess left behind after a Montgomery County Transit Ride On bus collided with a tractor-trailer on I-270 in Gaithersburg, Maryland.

A spokesman for Montgomery County Fire and Rescue Service tweeted photos from the scene, which at one point had all lanes blocked on the interstate just before the ramp for I-370.

The delivery truck was carrying multicolored paper products, which spilled into the roadway along with fuel during the crash.

No information has been released about what caused the crash.

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Police told FOX 5 DC there were no passengers on the bus at the time of the crash (Montgomery County (MD) Fire & Rescue Service)

Boxes and debris lie on the interstate where a Ride On bus collided with a tractor-trailer in Maryland. Crews spent many overnight hours cleaning up the scene. (Montgomery County (MD) Fire & Rescue Service)

All lanes were blocked on SN I270 just before the ramp for I370 following this crash in Gaithersburg, Maryland late Monday. (Montgomery County (MD) Fire & Rescue Service)

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The Ride On bus was not carrying passengers at the time of the crash around 9:30 p.m. Its driver was taken to a hospital due to a separate medical issue.

No other injuries were reported, police told FOX 5 DC.

Maryland transit bus crashes into tractor trailer, 1 taken to hospital

Maryland crash happened on I-270 near I-370, impacted traffic in the area for hours