The incident occurred at the head offices of the supermarket giant in Neckarsulm, southwest Germany, at around 3pm this afternoon. Another 100 employees were evacuated from the building as a bomb squad arrived to deal with the threat.
Local police have launched an investigation into the exact causes of the incident.
Police spokesman Gerald Olma, said: “It was probably a package or a letter bomb.”
She said a wide cordon remains in place around the building.
Police stressed the bomb was a package which had exploded after being opened by a member of staff.
Police added there was no evidence that Lidl had faced any blackmail or threats prior to the deliverance of the malicious package.
One of the three people injured sustained moderate injuries in the incident while the other two escaped with light injuries.
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