Dan Huberty, a Houston Republican who represents House District 127, was taken into custody after the crash at FM 1314 and Valley Ranch, according to the Montgomery County Precinct 4 Constable's Office.
Deputy constables responded to the crash around 9 p.m. and found Huberty's Corvette under an SUV, authorities said.
Huberty is accused of failing to stop for a red light before crashing into the SUV.
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The three people in the SUV suffered minor injuries but refused treatment, authorities said. Huberty was not hurt.
Officials say Huberty was given a field sobriety test at the scene and failed. He was taken into custody, suspected of DWI and bonded out of jail early this morning.
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The Montgomery County District Attorney's office confirms to abc13 that Huberty was arrested for driving while intoxicated last night.
"Last night I was driving under the influence of alcohol and involved in a minor automobile accident in Montgomery County," Huberty, who has been a member of the Texas House since 2011, posted Saturday on Facebook. "Fortunately, no one was seriously injured. I regret my actions and apologize to my constituents and my family. I am seeking treatment options to begin today."
SEE ALSO: Election Q&A: Texas House of Representatives District 127
The Texas Tribune contributed to this report.