UPDATE: On Friday, Dec. 20 at 9:06 p.m., the Texas Department of Transportation announced that the expressway reopened following a cleanup at the scene. Original story below:

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Drivers are urged to seek an alternate route following a grease spill on the expressway near Mercedes, according to the Texas Department of Transportation.

The eastbound lanes of Interstate 2 between FM 1015 and Mile 2 are closed as TxDOT cleans up the spill, according to a social media post.

The spill was caused by a rollover crash. 

Traffic is being diverted to the I-2 eastbound frontage road.

Channel 5 News was told the expressway would reopen by 8 p.m. Friday.

This is a developing story, check back for updates.