``This war was a German crime,'' President Frank-Walter Steinmeier told Poland's top leaders, US Vice President Mike Pence, German Chancellor Angela Merkel and other world leaders at a 80th anniversary ceremony marking World's War II's outbreak.
The bomb, which was found at a depth of about 10 feet, had an intact detonator, police added. The Berlin Police had put up a map of the area on Twitter, indicating the places where the evacuation will happen.
Even as Europe, the United States and their allies mark 75 years since 160,000 Allied troops stormed a heavily-fortified 50-mile (80-kilometer) stretch of Nazi-occupied coastline in Normandy, the history of D-Day and its aftermath is still being written.
In Frankfurt, bomb disposal experts will use a special system to try and unscrew the fuses attached to the HC 4,000 bomb from a safe distance. If that fails, a water jet will be used to cut the fuses away from the bomb.
The official People's Liberation Army Daily wrote in a commentary on Tuesday that anniversary should be a time for Japan to reflect on its history, not to "go further down forked road of harming Sino-Japanese ties and regional peace and stability".
Chinese troops staged a celebration of the 70th anniversary of Japan's surrender during World War II in Beijing; Vladimir Putin worksout in an open-air gym; Hundreds of angry migrants demonstrated outside Budapest's Eastern Railway Terminus.