The Met Office has issued a yellow weather warning, alerting residents and motorists to be aware of thick fog covering Essex this morning.
Dense fog is expected to clear slowly this morning, with visibility down to 100m in places.
The Met Office said the public should be aware of the potential for difficult driving conditions and travel disruptions.
Low-lying areas are expected to experience the thickest fog.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here