(CNN) A 40-year-old mother and two young children found on a sidewalk in Boston on Christmas Day "very likely" died in a double murder-suicide, Suffolk County District Attorney Rachael Rollins said Thursday.

The three were found unconscious outside the Renaissance Park Garage near Northeastern University just before 1:30 p.m. Wednesday and pronounced dead at a hospital.

They were identified as Erin Pascal, from West Roxbury, and her children Allison, 4, and Andrew, 1, according to Rollins.

There was a call to police from the family home earlier in the day, but authorities are not releasing the nature of that call at this time, she said. Police believe the children's father also lived with them.

Rollins encouraged those with mental health struggles to reach out to services for help, such as the suicide hotline

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