The NRL is moving ahead with plans to restart its season next month amid the coronavirus pandemic.
It had been reported the Warriors would be granted an exemption to enter Australia.
But Morrison said that decision was yet to be made and a May 28 resumption for the NRL was not yet locked in.
"That still hasn't been determined. The commonwealth has made no decision about the access by the Warriors into Australia, that hasn't happened," he told a news conference on Wednesday.