A woman held up a bank in Brooklyn Center, but authorities said the robbery is unrelated to two earlier heists in the past four weeks in the Twin Cities.

The latest holdup occurred shortly after 5 p.m. Tuesday at a Wells Fargo branch in the 5600 block of Brooklyn Boulevard, according to the FBI and police scanner communication.

The woman gave the teller a note demanding money and suggesting that she was armed, a Brooklyn Center officer told dispatch. The woman fled with cash and remains at large.

Authorities describe the suspect as white, in her 30s, wearing an oversized gray sweater, a hat, and large sunglasses.

Though officials initially thought the robbery might be related to a March 23 robbery in Minneapolis and one April 3 in Maplewood, they've ruled out the link.

Brooklyn Center Police Cmdr. Garett Flesland said he's been told "it is not the same" woman.

In the Maplewood holdup at the TCF Bank branch inside a Cub Foods on County Road B near Rice Street, a young woman handed the teller a note and implied that she had a gun.

The suspect was described as white and in her early to mid-20s. She was wearing a gray sweatshirt with the hood up, black yoga pants and mostly black gym shoes. Her hair was dark, with possible highlights.

On March 23, a woman robbed the Firefly Credit Union in the Seward neighborhood of Minneapolis. She demanded money, intimated that she had a gun, and ran down the street with the cash, Minneapolis police said.

That suspect was described as white, 22 to 30 years old, 130 to 140 pounds, with blond hair. She was wearing black yoga pants, a black sweatshirt that zippered in front with the hood pulled up, dark sunglasses and mostly black gym shoes.

Paul Walsh • 612-673-4482