A United States Coast Guard cutter conducting patrols on an international mission in the Pacific Ocean was denied entry to a port in the Solomon Islands raising concerns about China's growing influence in the area.

The cutter Oliver Henry was taking part in Operation Island Chief monitoring fishing activities in the Pacific, which ended Friday, when it sought to make a scheduled stop at Guadalcanal, Solomon Islands, to refuel and re-provision, the Coast Guard office in Honolulu said.

There was no response from the Solomon Islands’ government for diplomatic clearance for the vessel to stop there, however, so the Oliver Henry diverted to Papua New Guinea, the Coast Guard said.

Additionally, it was reported that a British vessel was also denied entry but the British Royal Navy has not commented directly on those reports.

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U.S. Coast Guard members aboard a cutter in Miami Florida

United States Coast Guard crew members work on a Cutter at the Coast Guard Sector Miami base on January 26, 2022 in Miami, Florida.  ( (Photo by Joe Raedle/Getty Images))

During Operation Island Chief, the U.S., Australia, Britain and New Zealand provided support through aerial and surface surveillance for Pacific island nations participating in the operation, including the Solomon Islands.

China has been assertively trying to expand its presence and influence in the Pacific, and Solomon Islands Prime Minister Manasseh Sogavare alarmed some neighbors, the U.S. and others after he signed a new security pact with China.

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The pact has raised fears of a Chinese naval base being established within 2,000 kilometers (1,200 miles) of Australia’s northeast coast. A Chinese military presence in the Solomon Islands would put it not only on the doorstep of Australia and New Zealand but also in close proximity to Guam, the U.S. territory that hosts major military bases.

Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, sits down with representatives of teachers and students at a symposium and delivers an important speech during a visit to Renmin University of China in Beijing, capital of China, April 25, 2022. (Photo by Ju Peng/Xinhua via Getty Images)

Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission (Ju Peng/Xinhua via Getty Images)

"China is gaining ground in its efforts to gain dominance in the Pacific," Former United States Department of Veterans Affairs Assistant Secretary James Hutton tweeted in response to the news. 

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"China is now running the Solomon Islands," Gordon G. Chang, author of The Coming Collapse of China, posted on Twitter.

Chinese President Xi Jinping shakes hands with Solomon Islands Prime Minister Manasseh Sogavare

Chinese President Xi Jinping meets with Solomon Islands' Prime Minister Manasseh Sogavare in Beijing, Oct. 9, 2019. (Xinhua/Yao Dawei)

The White House did not immediately respond to a request for comment from Fox News Digital.

Associated Press contributed to this report.