An unexploded World War II bomb has shut down London's City Airport, leaving all flights in and out of the airport cancelled and affecting up to 16,000 passengers.
The bomb was discovered at George V Dock in the River Thames by workers just after 5:00am on Sunday (local time), according to a statement by London's Metropolitan Police.
Specialists from the Royal Navy are working to remove the device.
Police set up an exclusion zone around the dock, closing roads and forcing residents to evacuate their properties.
London City Airport chief executive Robert Sinclair said all flights to and from the airport had been cancelled.
"I urge any passengers due to fly today (Monday) not to come to the airport and to contact their airline for further information," Mr Sinclair said.
One of London's smaller airports
The airport is frequently used by business passengers and is close to London's financial hub in Canary Wharf.
The airport is serviced by major airlines including British Airways, KLM and Lufthansa and has flights to domestic and international locations.
It is also close to London's East End which was bombed heavily during the Blitz — Germany's bombing campaign on the United Kingdom during 1940 and 1941.
Light railway stops near the airport have also been shut down due to the exclusion zone.