Foreign Minister Winston Peters has held a second meeting with United States Secretary of State Rex Tillerson in less than a week.
The two met at the East Asia Summit in Manila yesterday morning.
Mr Peters would not confirm they discussed security matters, only saying it has to do with an initiative in the Asia-Pacific region that Mr Tillerson wants New Zealand to be involved in.
"Mr Tillerson called and he wants New Zealand to be engaged in something and we'll hopefully be able to tell you something in the next few days," he said.
Mr Peters sat with Mr Tillerson at the APEC gala dinner at Da Nang in Vietnam at the weekend.