A Massachusetts family of five — including three children — was found dead in an apparent murder-suicide inside their home, according to a report.

The bodies were discovered Monday morning when a relative went to their condo in the town of Abington to take the three kids to school, Boston.com reported.

“It is a crime, a crime occurred in that building and three little children are gone forever as a result of this,” Plymouth District Attorney Timothy Cruz said Monday, according to the outlet.

The victims were identified as a 43-year-old-man, 40-year-old woman, an 11-year-old girl and twin 9-year-olds — a boy and a girl.

They all appeared to have died from gunshot wounds, officials said.

“This appears to be an isolated incident — there is no current threat to public safety,” Cruz said.

Authorities didn’t release the names of the family members, but the children’s school district identified them as the Zaccardi family, Boston.com reported.

“We are heartbroken to share with you that the Zaccardi Family, an Abington family, died unexpectedly last night,” Peter Schafer, the superintendent of Abington School District, said in a statement. “There are three young students of this family in our district.”