Houston, TX : A major wreck on Southwest Freeway snarled on May, Sunday, 14th 2017

A major wreck on Southwest Freeway snarled Sunday morning traffic.
A crash on the southbound side of the road near the Chimney Rock exit stopped up all main lanes just before 8 a.m.
Though Houston police could only confirm one vehicle involved, TranStar reported four.
It's not yet clear what sparked the wreck.

Source :
Major wreck shuts down Southwest Freeway