A number of flights out of London Southend Airport have been delayed or cancelled this morning as thick fog descends on Essex.The fog, which is expected to last throughout the day, has seen airport bosses issue warnings to would-be travellers.Posting on Twitter, a spokesperson for the airport said: "Due to weather issues, we are today experiencing delays and cancellations. We do apologise for any inconvenience to passengers."We would advise all passengers travelling today to check with...
