Argyle firefighters are working a vehicle fire Wednesday evening on Interstate 35W.
The vehicle was traveling south on the interstate about 5:30 p.m. when it caught fire and caused a grass fire near the FM 407 exit, according to information provided by Argyle Fire District Chief Mac Hohenberger.
No one was injured, but firefighters were still working the scene after 6 p.m., Hohenberger said.
The incident caused heavy gridlock on both sides of the interstate.
This story will be updated when more information becomes available.
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