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FORT WORTH (CBSDFW.COM) – Crews planned to work throughout Saturday night cleaning up thousands of gallons of diesel fuel.

The spill happened early Saturday afternoon when a tanker overturned in Fort Worth on Trinity Blvd near Post Oak Blvd.

Firefighters happened to be driving by the area shortly after the tanker overturned.

The cause of the crash remains unclear.

Hazmat crews soon began working to contain about 2000 gallons of diesel while nearby residents like Kourtney Farrar worried about their safety.

“Anything could happen. It could build up a blockage in our sewer system. It could cause a number of problems later on down the road if we don’t get it solved now,” Farrar said.

The fuel spilled into a nearby creekbed that leads to the Trinity River. Firefighters were able to stop the spill before it got that far, but the fumes lingered for hours.

Firefighters said they were lucky the creekbed is dry, so crews were able to start at Trinity and work their way back up the creekbed to contain the spill.

“If there was actually water it could have travelled at a much quicker rate versus it being dry and it just being able to soak up into the soil,” Farrar said.

Firefighters said both the driver and a firefighter who was treated for possible heat exhaustion were both taken to local hospitals, but both are expected to be okay.

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