Thieves stole tens of millions of euros from safety deposit boxes inside a German bank vault in Gelsenkirchen. Police said the robbery happened during the holiday lull on Monday. Around 2,700 bank customers were affected by the daring theft, officials said. Thomas Nowaczyk, a police spokesperson, told reporters that the stolen goods could be worth between 10 and 90 million euros ($11.7 to 105.7 million). The German news agency dpa mentioned this might be one of the largest heists in Germany. The Sparkasse bank branch stayed closed on Tuesday. About 200 angry customers came, demanding access. Early Monday, a fire alarm called police and firefighters to the bank. They found a hole in the wall and the vault was ransacked. Police think a large drill was used to break through the basement wall of the vault. Witnesses saw several men carrying large bags in a nearby parking garage over the weekend. Video from the garage showed masked people inside a stolen car early Monday. Gelsenkirchen is roughly 192 kilometers (119 miles) northwest of Frankfurt. Police continue to investigate the bold robbery and look for the suspects.