Operation Stack has been put in place at the Port of Felixstowe as strong winds are striking the port.
The operation means that lorries cannot enter or exit the port while the winds persist, because of the danger of using cranes in strong winds.
Lorries entering the port leave the A14 at the Seven Hills junction, and park along the old A45 at Levington, to relieve traffic on the A14.
A Suffolk police spokeswoman said the restrictions were likely to stay in place until tomorrow.
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