"Despite the easing of tensions on the Korea Peninsula, Pyongyang continues with its nuclear weapons and ballistic weapons programs in defiance of ... United Nations Security Council resolutions," Hupfeld told reporters.
"The occasional deployment of ... maritime patrol aircraft and surface vessels to the region ... adds weight to Australia's ongoing economic and diplomatic pressure on North Korea and enhances the capacity of ongoing multinational enforcement efforts," he added.
The Australians would work in cooperation with the Japanese, United States, Canadians and the South Koreas to enforce sanctions, Hupfeld said.
Hupfeld would not say whether the frigate HMAS Melbourne's role would be intercepting suspect cargo ships.
"I won't go into a great deal of depth on those aspects, that's very much an operational matter," Hupfeld said.
"An airplane flying over the top can't stop anything from occurring," he added.
The Sydney-based warship was currently in South Korea taking part in a fleet review, he said.
Trump has encouraged US allies to maintain sanctions on North Korea until it denuclearises as part of what his administration has termed a campaign of "maximum pressure" against leader Kim Jong Un's government.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)