BROOKLINE, Mass. -- A Dorchester woman was charged with a string of armed robberies in Brookline Thursday.

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NewsCenter 5's Pam Cross reports that Andrea Robinson was ordered held on $100,000 cash bail after police said that she used a note and a fake gun to steal $8,000 from Brookline Municipal Credit Union Wednesday.

Robinson allegedly told police that she stole because she loses between $2,000-$3,000 per visit gambling at Foxwoods. She has been arrested 13 times as an adult on charges ranging from larceny to assault.

Robinson was arrested shortly after the robbery Wednesday afternoon.

"When the last customer left, she put on her black ski mask, pulled her jacket over her head," prosecutor Orlando DiMambro said. "She had a note already prepared in her jacket. Upon entering the bank, she walked up to the first female teller she saw."

Robinson also apparently admitted robbing the Brookline Holiday Inn in November 2000 and a person at Village Cleaners in December 2000.

"The defendant immediately began to cry and said, 'It was me, I robbed that bank,'" DiMambro said.

A friend of Robinson's told reporters that he had seen her gamble but couldn't believe that she robbed the bank. Robinson is a nursing student with two children.