Authorities are investigating reports that exotic dancers performed lap dances on teenagers at a boy’s surprise 16th birthday party in an upstate New York village.

South Glens Falls Police Chief Kevin Judd says photos on social networking sites were given to his department by people concerned about the Nov. 3 party at the Spare Time bowling alley.

At least one of the images shows a scantily clad, tattooed woman clinging upside down to a seated teen as others look on.

Saratoga County District Attorney James Murphy says Thursday investigators are trying to determine who hired the dancers and if the alley served alcohol to any of the 80 adults and teens.

He says child endangerment is among the potential charges. A man at the bowling alley says he can’t comment.