A yellow weather warning has been issued for Suffolk today.
The Met Office warning for fog has been in place since 3am and will last until 10am.
All of Suffolk is covered by the warning.
The period will have high temperatures of 5C and lows of 2C.
There could be disruption to roads and train lines with warnings of low visibility.
National Highways has warned motorists to be careful on the roads.
It is advising people to watch their speed and put fog lights on if the visibility drops below 100 metres, roughly the length of a football pitch.
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