Philippine President Rodrigo Duterte speaks during a news conference in Davao city, southern Philippines August 21, 2016. REUTERS/Lean Daval Jr/File Photo

WASHINGTON (Reuters) - The United States has not been contacted by Philippines defense authorities about President Rodrigo Duterte’s comments on ending joint military exercises, the U.S. State Department said on Monday, noting it expected Manila to live up to its commitments.

“We’ve not been officially contacted by the Philippine defense department authorities regarding President Duterte’s statement,” State Department spokeswoman Elizabeth Trudeau told reporters. “I’d also note that we’ll live up to our commitments and we’ll expect them to live up to theirs.”

Duterte said during a visit to Vietnam that he was “serving notice now to the Americans” that marine drills beginning in the Philippines this week would be the last with U.S. forces.