At the Port of Dover in Kent, officials said this morning that cross-Channel ferry operations were operating "as far as possible".
Passengers are being advised to allow extra time for journeys ahead of possible road blockages on the A2 and A20.
More top news
A spokesperson said Rory Stewart's remarks were in line with the British government’s stated position.
The minister's intervention will come a week after Trump decertified the landmark agreement claiming it was not in the US national interest.
Scientists suggest that in 30 years antibiotic resistance will likely kill more people globally than cancer and diabetes combined.