Investigators believe Dr. Nancy Lefeber Hughes, 67, was struck by a vehicle and killed while riding her bike on Seawall Boulevard and East Beach Drive.
Authorities say it's unclear when Hughes was struck by a vehicle.
At about 6:40 a.m., two people found Hughes unresponsive next to her crashed bicycle.
There are no witnesses to the fatal crash, making it difficult to release any details, according to Lt. Xavier Hancock.
The initial report was categorized as a hit-and-run, but police could not confirm that information as of 1:19 p.m. Friday, Hancock said.
However, according to Hancock, initial calls indicate police are seeking a vehicle that has front-end damage.
"It's a tragic loss for Galveston, and all the patients she has are going to be devastated," said one of her patients, Ted O'Rourke. "She had that personal touch with so many people here on the island. I know she saved my life."
Hughes was a second-generation physician. Her father, Dr. Edward James Lefeber, has provided medical care in Galveston since 1939.
If you have any information, please contact Galveston County Crime Stoppers at the Anonymous Tip Line 409-763-TIPS.
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