An 18-wheeler rollover on westbound I-10 in far east Bexar County has closed part of the highway, prompting a several-hour highway closure, according to Transguide.

Transguide’s traffic map for Bexar County shows the closure affecting the westbound lanes between Farm to Market Road 1516 and past Loop 1604.

The crash was reported around 1:05 a.m. on Wednesday.

Details around what caused the crash are unknown; however, a Transguide official told KSAT the 18-wheeler spilled “some type of fuel” on the roadway.

The highway is expected to be closed for three to four hours, according to Transguide.

During the 5:30 a.m. show on Wednesday, KSAT’s RJ Marquez broke down alternate routes drivers could take to avoid traffic backups from the closure.

You can watch his traffic guidance tips in the

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