London: A planned visit to the UK by the Australian Parliament's powerful intelligence and security committee has been abruptly cancelled amid a diplomatic row over Boris Johnson's controversial decision to allow Chinese telco Huawei into its 5G network.

The committee was supposed to travel to Britain in late March and spend the first week of April meeting the House of Commons intelligence committee, Britain's security agencies and other high-level national security figures, as part of the countries' mutual links and membership of the elite Five Eyes spying club.

Liberal MP Andrew Hastie chairs the powerful Parliamentary Joint Committee on Intelligence and Security. Credit:Alex Ellinghausen

But The Sydney Morning Herald and The Age can reveal the trip has been suddenly cancelled.

It comes after the ABC revealed that the UK High Commissioner Victoria Treadell, a civil servant, penned an angry letter to two of Australia's most prominent MPs working in the national security space, demanding an explanation over an explosive leak revealed last week by the Herald and The Age that embarrassed the British.