Hong Kong (CNN Business) Chinese tech giant Huawei is facing a new attack as it tries to persuade the UK government to let it help build super-fast 5G networks in the country.

Top British cybersecurity officials are reportedly confident they can manage any risks from Huawei's telecommunications equipment, but a report published Wednesday by the Royal United Services Institute (RUSI), a top security think tank, said that would be a mistake.

"Allowing Huawei's participation is at best naive, at worst irresponsible," the report said, suggesting such a move could compromise the United Kingdom's communications infrastructure.

The US government is pushing allies around the world to block wireless operators from buying Huawei gear for the 5G networks they're starting to build. US officials say the company's technology could be used by Chinese intelligence agencies for spying.

Huawei and the Chinese government have repeatedly denied the US allegations. Huawei did not respond to requests for comment on Wednesday.

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