St Augustine, Florida: Authorities say a north-east Florida woman who didn't like her neighbours had their mobile home demolished.

According to an arrest report, Ana Maria Moreta Folch of St Augustine told a heavy equipment operator that she owned the trailer and wanted it and its septic tank destroyed.

The Florida Times-Union reports that St Johns County Sheriff's deputies were called when the trailer's real owner arrived on Monday and found the demolition underway.

The owner of the home Maria Gottfried told the deputy she had owned the mobile home since 2006, according to the report.

She said she had never had any arguments with the 62-year-old Moreta Folch, although she had never given her a key.

The arrest report says Moreta Folch wanted the trailer bulldozed because she thought its occupants were unsavory and she suspected they had broken into her car. 

Folch is reported as saying she was doing the community a favour by removing her neighbour's home.

Moreta Folch was charged with criminal mischief, a third-degree felony.

She was released on Wednesday on $US10,000 ($10,687) bail. Jail records did not show whether she had an attorney.