Erica Kilcoyne has owned the day care for 20 years and said she took immediate action after the incident.
"All the staff members have been terminated on the spot and are no longer with the company," said Kilcoyne.
And that's not all. She said she had brand new locks put on the gates and surveillance cameras installed just hours after the three wandered off.
Kilcoyne said every child showed up to day care Tuesday, with the exception of one. The mother of one of the toddlers who wandered out pulled her child from the center.
"I don't blame her. This was a hard situation for everybody and we're still here for her," she said.
West Bridgewater Police say they are not investigating, but officials with the Department of Children & Families said they did receive a report and have opened an investigation.