A grandmother is furious after she says her granddaughter was left to ride the school bus for hours on her first day of first grade.

"My blood is boiling inside me, I can't relax since this happened and I just want answers," Olga Curto told WFXT.

Talia Brown attends the Dante Alighieri School in East Boston. From there, Curto said she is supposed to be taken by school bus to an after school program at the East Boston YMCA on Ashley Street. When school let out at 1:30 p.m., Curto said Talia got on the bus, but never made it to the Y.

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"My daughter went to the YMCA at 5:05 to pick her up and they told her she wasn't there. At that moment, my daughter had a heart attack. She just basically almost fell to the floor," said Curto.

Curto said that an hour later, the Boston Public Schools Transportation Department called to say they had Talia. They said she had been on a school bus the entire time.

"The driver just continued on to his to four other routes whatever those routes were I don't know," Curto said.

Olga said she's doesn't understand why the school bus driver didn't notice her granddaughter or why the YMCA didn't call to tell her Talia never showed up

"I haven't gotten any response.  The only response I have gotten if from your news station," she said.

WFXT has reached out to Boston Public Schools Transportation and the YMCA, but hasn't heard back.