President-elect Donald Trump on Saturday night vowed to demand a return of the Panama Canal to the United States if Panamanian officials continue to charge U.S. vessels crossing the vital waterway “exorbitant” passage fees.

In two Truth Social posts, Trump slammed the “complete ‘rip-off’ of our Country” by Panama through the “ridiculous” fees being charged to the U.S. Navy and American businesses who need to pass through the canal.