Private details of more than 2000 people have been accidentally released by a Melbourne council in a privacy breach.
A spreadsheet containing the names, addresses, birth dates, phone numbers and some emails of 2112 people was attached to an emailed survey invitation from Kingston City Council to parents regarding Kingston's Maternal and Child Health services.
No financial, medical or children's details were released.
The council, which serves bayside suburbs in Melbourne's southeast, has apologised and says an investigation is underway.
"We acknowledge that this was an unacceptable privacy breach and are taking immediate action to determine how it occurred and to make sure it never happens again," chief executive John Nevins said.
The council is working with the Privacy Commissioner and will commission an independent investigation.