Dense fog grounds dozens of flights out of Heathrow City was further hit by severed delays on the Docklands Light Railway which serves the airport, linking it to London Docklands. Southend Airport said it was also facing disruption because of what it described as "inclement weather conditions." The cancellations included flights to and from Ireland, while easyJet diverted some services to Stansted which, like Gatwick, was operating normally. The weather disruption came a day after flights across Europe were hit by industrial action in a number of countries by workers protesting against their governments introduction of austerity measures. National rail services were unaffected by the fog, a spokesman for Network Rail said. Norwich airport was also affected by the fog, with some flights having to be diverted to other airports, and Southampton airport reported delays to flights from the Channel Islands. British Airways was one of the airlines hit by the poor visibility today. BA said: "We are doing everything we can to help customers on flights disrupted by the foggy conditions across the UK and Europe today. We have been contacting customers on affected flights, who have the choice of rebooking or claiming a refund, and are advising customers to check ba.com for the latest flight information. We apologise to customers for the inconvenience and thank them for their understanding.