Using Huawei in UK 5G network 'madness', says US

The US has warned the British government it "would be madness" to use Huawei technology in the UK's 5G network.

A US delegation presented the UK with new evidence claiming to show security risks posed by using the Chinese firm.

US President Donald Trump has sought to pressure Prime Minister Boris Johnson on the issue.

A decision is expected this month on whether to allow Huawei to supply some "non-core" parts for the UK network.

A US delegation led by deputy National Security Adviser Matt Pottinger met ministers in London on Monday.