According to this press release posted on WickedLocalNewton, 12 residents have filed a “ten taxpayer” lawsuit against the city of Newton “seeking an injunction against the lease or sale of the city-owned Austin Street parking lot to Austin Street partners LLC for a mixed-use development.”

The group is alleging that the city did not follow provisions of the state bidding or zoning laws.

UPDATE: Here’s the court document

UPDATE: Here’s the Globe’s coverage, with a comment from City Solicitor Donnalyn Kahn.