World War II bomb defused in Hamburg after rail shutdown and evacuation of 2,500 people

Discovery and evacuation at Diebsteich

During construction work on Wednesday, workers discovered an unexploded 500-pound British aerial bomb at the Diebsteich railway station on Schleswiger Strasse in Hamburg-Bahrenfeld. The discovery occurred at the construction site for the new Altona railway station. The ordnance was equipped with a chemical time-delay fuse, creating an acute explosion risk after construction personnel moved the munition during digging operations. In response, emergency services established a mandatory exclusion radius of 400 meters around the site, requiring roughly 2,500 residents and workers from nearby commercial businesses to leave immediately. Police officers deployed loudspeaker vehicles and went door-to-door throughout surrounding residential streets to direct evacuations.

Authorities set up three emergency shelters equipped with camp beds in two local schools, including a school located on Max-Brauer-Allee, and an event hall to accommodate displaced citizens. For residents living between 400 meters and 1,000 meters from the site, officials issued an advisory warning radius covering approximately 20,000 people. Those inside this outer perimeter were instructed to stay indoors, close all windows and glass doors, and remain in rear rooms facing away from the excavation zone. Hamburg authorities activated the citizen telephone hotline at 115 to provide logistical information.

Rail disruptions across northern Germany

The safety exclusion perimeter forced an immediate suspension of rail services along a key transit artery linking Hamburg with western and northern Schleswig-Holstein. The connecting line between Altona station and Hamburg Hauptbahnhof was closed, severing a primary corridor for regional and long-distance trains. Local commuter transit experienced heavy cancellations, with S-Bahn lines S1, S2, S3, and S5 disrupted, including a complete halt of S3 and S5 trains between Altona and Eidelstedt. Regional services RB6, RB60, and RB71 were halted, cutting rail links to Flensburg and Kiel.

There are massive cancellations from the north.

Long-distance passenger trains travelling from southern Germany terminated prematurely at Hamburg Hauptbahnhof and Hamburg-Harburg. Rail links with Denmark were blocked, leaving crowds of stranded passengers waiting at Hamburg Hauptbahnhof. Deutsche Bahn short-turned Intercity Express trains on the Munich-Nuremberg-Kassel-Hannover-Hamburg route in Hannover, while ICE and Railjet trains connecting Prague, Dresden, Berlin, and Hamburg terminated in Berlin. Deutsche Bahn organized replacement buses between Pinneberg and Altona along with replacement taxis for S-Bahn commuters.

Bomb defusal and reopening of transit links

Bomb disposal experts from the Kampfmittelräumdienst carried out the defusal operation under acute safety risks caused by the disturbed chemical fuse. The fire department coordinated the multi-hour technical procedure, maintaining security cordons while specialists worked directly on the munition. Police maintained security perimeters around the Diebsteich railway junction as technical teams secured the site.

We expect a multi-hour operation.

Shortly after 22:00 on Wednesday evening, the fire department announced that the Kampfmittelräumdienst had successfully neutralized the bomb. Officials lifted all evacuation orders and protective cordons, permitting 2,500 residents to return to their homes and reopening local roads. Train tracks were cleared for operation later that night, though Deutsche Bahn warned that residual delays and partial cancellations across the long-distance network could extend into Thursday midday.

Unexploded ordnance in Hamburg

Unexploded World War II aerial bombs remain a recurring challenge for urban development in Hamburg more than 80 years after the conflict. Heavy munitions dropped during wartime air raids frequently penetrated deep into the city's soft, marshy soil without detonating on impact. Construction projects in the metropolitan area regularly undergo systematic ground surveys to detect buried explosive remnants prior to heavy excavation. Despite routine subsurface probing, unmapped unexploded bombs continue to be encountered unexpectedly during civil engineering and infrastructure projects.