(KMOV) - A huge mulch pile caught fire Sunday, and burned until Monday afternoon.

This happened at the Route 66 Landscape Supply Center on Business Loop 44, between Six flags and Pacific.

More than 100 firefighters helped to put out the flames.

The cause is still under investigation.

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(KMOV) - Nearly 100 firefighters from 12 districts are battling a four-alarm fire just west of Six Flags.

KMOV

A giant pile of mulch is burning at the Route 66 Landscape Supply Center on Business Loop 44.

Smoke from the fire is shutting down all trains using the railroad tracks including Amtrak service to Kansas City. Union Pacific and Burlington Northern Lines are also included.

Firefighters will be on scene all night.

No cause yet on what sparked the fire.

Homes nearby were not affected.