Bryan Police are investigating an overnight robbery at the Sonic Drive-In on Briarcrest.
It happened about 12:30 a.m., Saturday, as store employees were closing.
They told police a woman walked in with a gun and demanded money.
A male suspect then threw a bag through the drive-thru window.
As the suspects tried to get away with an estimated $2,000, the on-duty manager chased them to the Wells Fargo building and was able to recover most of the money.
Police say they have interviewed persons of interest in the case. But, so far, no arrests have been made.