The crash occurred Thursday afternoon in Sofia, the Sofia News Agency reported. Witnesses said the driver, at the wheel of an Audi, made a sharp turn into the building.
"I heard a loud noise and ran out into the street to see what is happening," one witness who did not see the actual crash said. "A policeman took out his pistol, went to the car and arrested the driver. The man had not suffered any injuries."
The building's heavy iron gates quickly brought the car to a halt, witnesses said.
Police described the driver as a 35-year-old Bulgarian citizen. Witnesses told Bulgarian National Radio the man was yelling about avenging the death of his brother in Turkey, Novonite.com said.
Bulgaria was under Turkish rule as part of the Ottoman Empire for about 500 years. The country became independent in 1878 after an uprising put down by the Ottomans with the loss of 30,000 Bulgarian lives and a war in which Russia attacked the Ottomans with the help of Bulgarian volunteers.
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