Australian One Nation MP Barnaby Joyce has publicly questioned whether a recent Chinese missile test could be linked to a nationwide Telstra outage that left millions of customers unable to make calls, use mobile data or make electronic payments on Wednesday. His remarks matter because they inject a national-security suspicion into what the telecommunications company has described as a technical fault, with no evidence of foreign involvement.

Telstra's chief financial officer, Michael Ackland, told a press conference that a software update had brought the network down, that the cause was not yet understood, and that there were no signs of malicious activity. Joyce nonetheless called for an investigation, noting the outage came days after China test-launched a nuclear-capable intercontinental ballistic missile into the Pacific. He repeatedly stressed he did not want to sound like a conspiracy theorist but wanted the matter checked. China's state media outlet Xinhua said the launch, which followed advance briefings to governments, was part of a routine military training programme.