Charged with robbery, Donald Sturton, 70, appears in court in March. Staff photo by Derek Davis

The 70-year-old South Portland cabdriver who is accused of robbing the Bank of America branch by the Maine Mall with a plastic squirt gun last month has been indicted by the Cumberland County grand jury on one count of Class B robbery, the Cumberland County District Attorney’s Office said Friday.

Donald Sturton, making no effort to conceal his identity, demanded cash from a young female teller and walked away from the bank with $895 on March 7, court documents state. South Portland police apprehended him while he was waiting for a bus to take him home.

According to court documents, Sturton told police he had been thinking of robbing a bank for about a month. He said he was having trouble paying his bills, and had been taking medication to treat depression and anxiety.

The robbery charge carries a maximum penalty of 10 years in prison.