They've jointly written an article in today's Irish Times.
Peace in the North will be damaged if changes aren't made to the Northern Ireland protocol, that's according to Brandon Lewis and David Frost.
The Northern Ireland Secretary of State and the UK's Brexit minister have written a joint article in the Irish Times.
They say this week's extension on the chilled meats grace period is welcome, but it addresses only a small part of the underlying problem.
They say a "new balance" needs to be found in terms of customs checks.
Britain ‘not sabre rattling’ on Northern Ireland protocol, says British ambassador https://t.co/7CXShVoWkD via @IrishTimesPol
— Irish Times Politics (@IrishTimesPol) July 3, 2021