Feb. 12 (UPI) — London City Airport was shut down Sunday after a World War II-era bomb was found nearby in the River Thames.

The unexploded bomb was found during planned development procedures at the King George V docks. After the bomb was located, Metropolitan Police set up a 214-meter exclusion zone as a precaution.

“Overnight, officers have been helping to evacuate properties within the exclusion zone and police are working with the local authority to provide residents with temporary emergency accommodation and the appropriate support,” police said in a statement.

Metropolitan Police and the Royal Navy are working together to remove the bomb from its location.

The newfound bomb is expected to cause more cancellations on Monday.

Airport CEO Robert Sinclair said all flights in and out of London City on Monday are canceled.

“I urge any passengers due to fly today not to come to the airport and to contact their airline for further information,” Sinclair said via Twitter.

London isn’t the only major city to find a WWII-era bomb in recent days.

Last month, construction workers in Hong Kong unearthed two unexploded U.S. bombs that were likely dropped some time between 1941 and 1945.

Both bombs were discovered in heavily populated areas, causing thousands of people to be evacuated until the explosives were removed.