British Foreign Minister Liz Truss said on Monday that they don't rule out using Article 16 further down the line, as reported by Reuters. 

"Triggering Article 16 would not resolve fundamental issues in the Northern Ireland Protocol," Truss added.

Regarding the upcoming vote on proposed legislation to override parts of the post-Brexit agreement, "It is our expectation that the passage of this bill will result in the institutions being established," Truss told parliament earlier in the day.

Market reaction

These comments don't seem to be hurting the pound. As of writing, the GBP/USD pair was up 0.4% on the day at 1.2308.