Flights are cancelled and hundreds of passengers delayed after a bomb was discovered near London's City Airport on Sunday morning (local time).
The unexploded WWII-era bomb was found in the Thames River at George V dock during work at the airport.
The airport remained closed on Monday morning and all flights in and out were cancelled. Passengers were advised to contact the airlines they were flying with.
Hundreds of thousands of bombs were dropped on Britain by Germany's Luftwaffe during World War II, and unexploded bombs are discovered every few years, often by construction workers preparing foundations.
The discovery of unexploded bombs triggers a military emergency response as army bomb disposal units are sent in. Bombs are either defused or detonated.
London Metropolitan Police said that the operation to remove the historic bomb was being carried out in partnership with the Royal Navy.