Britain’s BT Group said on Wednesday it was removing Huawei Technologies’ equipment from the heart of its 5G mobile network when it is rolled out in the UK. BT also confirmed that it was stripping Huawei equipment from the core of its existing 3G and 4G networks, but still plans to use the Chinese company’s phone mast antennas and other products deemed not to be at the “core” of the service.

According to BT, Huawei’s equipment had not been used in the core of its fixed-line network, and it was removing it from the core of the mobile networks it acquired when it bought operator EE.

Australia and New Zealand have stopped telecom operators using Huawei’s equipment in new 5G networks due to concerns about possible Chinese government involvement in their communications infrastructure.