Authorities in Vanuatu have arrested six Chinese nationals following complaints from authorities in China that they were operating an internet scam from the Pacific island, media reported on Saturday. Chinese law enforcement officials arrived in Vanuatu soon before the late Thursday raid in which the six were detained, and helped identify the premises in the capital, Port Vila, from where they were suspected of running the scam, the Vanuatu Daily Post reported. Reuters was unable to confirm the report or contact Vanuatu police on Saturday. The Chinese foreign ministry did not immediately respond to a request for comment. Some or all of the suspects are reported to hold dual citizenship in China and Vanuatu. The arrests came at a time of concern in some quarters about growing Chinese influence in the Pacific. The United States and its ally, Australia, are particularly wary of Chinese diplomatic and economic inroads in the region. US official urges Pacific island nations to maintain diplomatic ties with Taiwan In April, Vanuatu and China denied media reports that China wanted to build a permanent military base in the island nation. In May, President Xi Jinping told the visiting Vanuatu Prime Minister Charlot Salwai that China was not seeking a sphere of influence in the Pacific .