LAHAINA, Maui — After posting $1,000 bail to be released on a drunken-driving charge, a woman was arrested a few hours later on another impaired-driving charge following a traffic collision in Lahaina, police said.

The first arrest occurred at 5:28 a.m. Sunday when Sandra K. Schwartz, 62, was stopped for traveling 60 mph in a 40 mph zone on Honoapi'ilani Highway near Kaniau Road in Lahaina, said Capt. Charles Hirata, commander of the Lahaina Patrol District.

Lahaina patrol officer Matthew Bigoss arrested Sch-wartz after she showed symptoms of being under the influence of alcohol, Hirata said.

After being booked at the Lahaina Police Station and charged with DUI, Schwartz posted bail to be released at 9:10 a.m.

About two hours later at 11:30 a.m., police again encountered Schwartz when they were dispatched to a vehicle collision on Honoapi'ilani Highway near Kahana Ridge Road, Hirata said. He said the vehicle she was driving collided with another vehicle, slightly injuring the other driver.

Hirata said Schwartz again appeared to be impaired and could not pass field sobriety tests administered by Lahaina patrol officer Kean Uehara. Schwartz was arrested and charged with driving under the influence of an intoxicant, Hirata said. She reportedly was under the influence of prescription drugs.

She posted another $1,000 in bail to be released at 3:15 p.m.