Lydia the great Dane went missing Friday.
Lydia the great Dane went missing Friday.
Boston Police Department

A Boston woman who suffered a traumatic brain injury in the second of the two Boston Marathon bombs in 2013 became separated from her service dog Friday evening after it ran off, according to multiple reports.

Lydia, a black Great Dane with a white patch on her chest, reportedly got loose in Jamaica Plain before running away from her owner, Joanna Leigh. Lydia was last seen running through Jamaica Plain Center.

Lydia was paired with Leigh by the Service Dog Project, an Ipswich based nonprofit organization that — according to its website — “provides a better quality of life for the mobility impaired” by donating service dogs.

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Anyone with information about Lydia’s whereabouts is encouraged to call Boston Police at 617-343-5640.

Leigh, who told NECN in May that she was hurt as she tried to assist other Boston Marathon bombing victims, said she didn’t lose a limb but was still affected by the blasts.

“I want people to know that just because you can’t see injury, it doesn’t mean it’s not catastrophic,” Leigh said.