Some passengers due to depart from Heathrow and Gatwick airport woke up to find their flights delayed or cancelled.
Several flights have been delayed at Heathrow and Gatwick today. Some departures have been axed at Heathrow, including by British Airways.
One BA flight has suddenly returned back to Heathrow shortly after takin off. The pilot of the BA866 flight alerted the air traffic control to a general emergency before turning back.
Ryanair told passengers departing from Stansted to arrive at the airport three hours before departure due to security staff shortages.
London Overground disruption after signal fault
Passengers on London Overground face severe disruption set to last until lunchtime.
Journeys between Stratford, Clapham Junction and Richmond could be cancelled or take 20 minutes longer than usual.
It comes after a signalling fault at Canonbury.
Disruption is expected to last at least until 11.30am.
British Airways flight declares emergency before returning to Heathrow
A British Airways flight to Budapest suddenly declared an emergency before retuning back to Heathrow.
Shortly after taking off from Heathrow, the pilot signalled a general emergency on board.
Read more about it below.
Van fire causes rush hour chaos on the M25
Drivers have been caught in traffic chaos on the M25 in Surrey.
A van went up in flames on the hard shoulder south of Caterham.
Two out of four lanes have closed anticlockwise between junctions J7 and J6, causing almost an hour-long delays at rush hour.
There are long tailbacks on approach.
Congestion is also building up clockwise from J5 due to construction in the area.
Delayed departures at Gatwick Airport
Passengers at Gatwick have been spared any major disruption today.
Here are the flights listed as delayed so far today.
EasyJet EZY8019 at 6am to Madrid
Eastern Airways T3452 at 9.25am to Newquay
British Airways BA2576 at 5.30pm to Nice
List of departures delayed and cancelled at Heathrow
Here are the departing flights listed as delayed and cancelled on the airport departure board.
Delayed
American Airlines AA731 at 9.15am to Charlotte
American Airlines AA729 at 9.35am to Philadelphia
Virgin Atlantic VS302 at 10.30am to Delhi
British Airways BA938 at 11.10am to Dusseldorf
British Airways BA1412 at 11.35 to Belfast
United Airlines UA017 at 12 pm to New York City
American Airlines AA733 at 12.15pm to Charlotte
British Airways BA193 at 1.05pm to Dallas Fort Worth
British Airways BA197 at 2.50pm to Houston
British Airways BA566 at 3pm to Milan
American Airlines AA735 at 3.15pm to Charlotte
British Airways BA870 at 9.15pm to Budapest
Cancelled
British Airways BA306 at 8.40am to Paris
Virgin Atlantic VS005 at 11.15am to Miami
Disruption on Greater Anglia trains from Norwich
While journeys are set to be back to normal at London Bridge, trains have been hit by disruption between Norwich and London.
A fault with the signalling system at Norwich has blocked some lines.
Trains between Norwich and Cromer, Sheringham, Great Yarmouth, Cambridge, Ipswich and London Liverpool Street could be cancelled, delayed by up to 30 minutes or revised.
The disruption is expected to last until 8.30am
Train journeys resume after fire caused major disruption yesterday
National Rail has confirmed railways are running as normal this morning after engineers worked to fix the damaged equipment near Brockley Station.
Services between East Croydon/West Croydon/Crystal Palace and London Bridge/Canada Water were cancelled or revised.
Passengers were told to avoid London Bridge station yesterday.
