British Airways has tweeted that fog is causing delays and some cancellations at Heathrow Airport.
Fog is causing delays & some cancellations at London Heathrow today. Please check your flight details here http://t.co/aZ9bu1grmm
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Endris Mohammed must serve a minimum of 33 years after killing his two children with a petrol-soaked cloth before trying to kill his wife.
Three people who had been arrested on suspicion of murder have been released without any further action.