HEAVY dense fog is causing problems on the roads this morning.

Areas of fog started to form in places across the county during Sunday evening.

However the main problems would appear to be during this morning's rush hour.

Visibility is low and dense areas of freezing fog may lead to journeys taking longer than usual.

The yellow warning for fog is in place until at least 10.30am The Met Officer's chief forecaster said: "As the cold airmass across much of the south of England moistens up, there will be a much greater risk of fog than on recent nights.

"Areas of cloud trying to advance from the west will add to the uncertainty in extent of fog later in the night and through Monday morning."