Police say they broke up a Brookhaven party that hosted as many as 400 people, and charges may be on the way.

A 10-acre estate on Hawkins Lane played host for the party Monday, which police say was in clear violation of state COVID-19 mandates. 911 calls came began coming in right around 12:25 a.m.

One of the calls came from the property's owner, who blew the whistle on the host - who rented the property from him on Airbnb.

"He made it very clear to the person that was renting the house, who we believe was from New Jersey, what the rules were in New York, that they could not have a gathering of more than 10 people and he did supply documentation that that message was communicated," says Suffolk Police Chief Stuart Cameron.

Judy Bird lives next door to the party site and condemned the renter's actions. She says the property owner had very strict limitations on the number of people who could be in the mansion.

"In fact, he told me this summer that he had installed cameras inside the house so that he could monitor it and he would know how many people were there," says Bird.

Police responded with aviation, emergency service and canine units, and it took them four hours to clear the hundreds from the property. Cameron says it was a logistical challenge to move that many people out of a dead-end street in a residential community.

Police say they plan to press charges and slap civil fines of up to $15,000 against the host once they track him down.

"We have overcome too much to allow some really selfish, reckless individuals, really set back our efforts to continue to protect people's health," says Suffolk Executive Steve Bellone.