TAMPA-- A busy road in Tampa is shut down after a van and dump truck collide causing the truck to spill tons of rocks onto the roadway.

Northbound traffic on 50th Street is closed.

Tampa police say the incident happened just before 7 a.m. Thursday on 50th Street under the Selmon Expressway.

During the collision, the truck was knocked over on its side and spilled over 23 tons of rocks.

Crews have begun cleaning up the mess, but at this time it is unclear how long the road will be closed.

The crash is still under investigation.