20,500 Evacuated in Cologne After WWII Bomb Discovery

In June 2025, Cologne experienced its largest evacuation since the end of World War II. Over 20,500 residents were compelled to leave their homes following the discovery of three unexploded World War II bombs at a construction site in the Deutz area. The ordnance included two 1,000-kilogram bombs and one 500-kilogram explosive, both of American origin.

Authorities established a 10,000 square meter evacuation zone, leading to a 12-hour shutdown of the city's heart. Road and train lines were suspended, and city officials conducted door-to-door evacuations. The operation also necessitated the closure of 58 hotels and numerous businesses, affecting a hospital, two elderly care homes, nine schools, and a television studio. Bomb disposal experts successfully defused the explosives, resolving the immediate threat.

This incident highlights the persistent danger of unexploded ordnance found at German construction sites, remnants of the devastating conflict. Similar discoveries have led to large-scale evacuations, such as a 2017 event in Frankfurt that displaced 65,000 people. In 2021, an explosion near Munich's main railway station injured four people.