A local investor group trying to buy the Nashville Predators canceled a Wednesday news conference after city officials denied they had reached an agreement on changes to the team's arena lease. Earlier in the day, the group said it was set to make an announcement after weeks of negotiations with city officials about changes the potential buyers say are necessary to complete the $193 million deal and keep the team in Nashville. "No agreement has been reached," said Janel Lacy, spokeswoman for mayor Karl Dean, who extended the final offer last week. "Only if and when an agreement has been reached will there be an announcement." "It is off," investors' spokesman Joe Hall wrote in an e-mail, without elaborating. Lacy said there is no timetable on the deal.