The Justice Department is asking for Apple’s assistance in accessing the contents of at least nine iPhones, according to court documents unsealed on Tuesday, and possibly more. Officials have obtained court orders demanding Apple’s assistance in five states.

“There has not been any final disposition [in the cases] to Apple’s knowledge, and Apple has not agreed to perform any services on the devices to which those requests are directed,” Apple Attorney Marc Zwillinger said in a letter to the court, which was dated Feb. 17.