Attorney General Letitia James is filing a lawsuit against a popular Long Island pet store for violating state laws.

The suit claims that Shake-A-Paw fabricated health certificates and misrepresented the health, breed and origin of its puppies to consumers.

The investigation comes following around 100 complaints from individuals and families who say their puppies were in physical distress, needed lengthy and costly medical care or didn't survive. Some say their puppies died days after arriving at their home.

"Shake-A-Paw advertises their puppies as healthy and of the highest quality but our review of hundreds of veterinary records and consumer testimony tells a different story," James says.

The attorney general's investigation found that Shake-A-Paw, which has locations in Lynbrook and Hicksville, is a client of known puppy mills.

The lawsuit is seeking restitution for those affected.

News 12 reached out to Shake-A-Paw for comment on the allegations, but they declined to speak.