A massive wave has smashed into and flooded a US military base in the Pacific Ocean, causing “extensive damage”.

Footage shows a powerful stream of water smashing down doors and rushing through a dining facility located on Roi-Namur island, in the Marshall Islands.

One person in the video can be heard shouting “keep the door closed, keep the door closed” before a massive wave smashes through and appears to engulf the building. Furniture can be seen floating downstream.

“Get out of here,” a man can be heard shouting, before the building descends into darkness after losing power.

Multiple areas on the island were under water, a US army statement said on Wednesday, adding that a series of high waves, driven by offshore storm surges, had caused “significant flooding”. There was “extensive damage” to Roi-Namur’s infrastructure.

“Flooding from the waves damaged much of the unaccompanied personnel housing,” a statement said.

Col Drew Morgan, commander of US army Garrison-Kwajalein Atoll, said there were only a few minor injuries as a result of the incident.

The island the base is stationed on is vulnerable to rising sea levels.