An explosion that rocked a German town over the weekend, and created a 13-feet deep crater in a cornfield, was likely a World War II-era bomb going off, experts said.
Residents in the town of Ahlbach were woken around 4 a.m. on June 23, 2019, by a loud blast followed by a tremor that felt like an earthquake, according to CNN. No one was injured in the blast, the Associated Press reported.
Investigators who visited the cornfield discovered a crater that was 33 feet wide, according to a press release from officials in the town of Limburg.
While there was speculation that the blast could have been a meteorite, experts were brought in and determined it was "almost certainly" a World War II bomb, hessenschau.de reported.
Limburg officials pointed out in their statement that the area was a frequent target for bombing raids during the war, since the Nazis operated railway facilities and radio stations nearby.
Experts say that undiscovered bombs can explode as their detonators deteriorate over time, according to CNN.
Unexploded bombs continue to be found in Germany more than 70 years after World War II. On June 24, 2019, 2,500 people were evacuated just outside Frankfurt when two World War II era bombs were discovered, according to TheLocal.de.
This article originally appeared on Insider. Follow @thisisinsider on Twitter.
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