HAMPTON — Authorities are investigating whether a serial bank robber may have struck again in the southern Twin Cities area.

The Dakota County sheriff’s office say a gunman held up the Merchants Bank in Hampton about 9:45 a.m. Friday.

The suspect ran away with an undisclosed amount of money. Authorities believe he may have left the area in a white mid-size Chrysler-style car.

The suspect is described as a white man wearing a ski mask, blue jeans and a blue windbreaker.