GARY, Ind. (AP) — A tenant at the Gary/Chicago International Airport is suing the airport authority and its private operator, alleging that they “unilaterally” quadrupled its rent.

The Gary Jet Center’s federal lawsuit seeks a permanent injunction against the airport authority’s attempts to levy a 1.5 percent fee on tenants’ gross revenues at the airport. Gary Jet Center owner Wil Davis says the authority’s actions are “just harassment.”

Gary Airport Director Dan Vicari tells The (Munster) Times he cannot comment on the pending litigation.

The suit filed Thursday in U.S. District Court in Hammond contends the airport authority and airport operator AvPorts cannot violate the company’s 2007 lease.

Gary Jet Center has three hangars and a passenger lounge at the Gary airport. It’s one of two fixed-base operators at that complex.