A bus driver is being commended by the Medford Police Department for stopping her bus and calling police when she spotted a 2-year-old girl walking a Medford street alone, according to the MBTA.

Donna D’Amelio spotted the child near Light Guard Drive as she was driving the 134 route on Riverside Avenue about 6 a.m. on Aug. 5, according to a press release from the MBTA.

D'Amelio stopped the bus, called police and waited with the girl until police arrived, according to the release. Medford Police took the toddler to Lawrence Memorial Hospital for observation and canvassed the neighborhood to find the parents.

Officer Matthew Jones discovered an open door at a nearby housing development about 45 minutes later where he found the child's family, still asleep and unaware that the youngster had taken off, according to the release.

"The mother of the child, when faced with the news, was visibly shaken and immediately transported to the hospital where she was reunited with her daughter," the press release said.

D’Amelio will be awarded a certificate of commendation by the Medford Police Department in a presentation at 10 a.m. today at on Wednesday at Transit Police Headquarters.