The Houston Police Department said it got a call at about 10:20 a.m. about a major crash on the Southwest Freeway. Police said the crash involved a black pickup truck and an unknown vehicle.
According to HPD, the pickup truck was towing a trailer when it overturned in the crash, spilling debris across multiple lanes of traffic.
It's unclear if anyone was injured or what led to the crash.
By 2 p.m., authorities said all lanes had been cleared.