Large explosion in the centre of Cologne, in the Hohenzollernring area .
Shortly after 6 a.m., an explosive device exploded on the Ringen, the famous party boulevard, in the entrance of a restaurant inside a building that also houses several offices .
According to Bild , a cleaner was seriously injured and is hospitalized.
The explosion in front of the restaurant, which also serves as a nightclub, caused ceiling panels in the entrance area of the building to fall and glass in the windows to shatter .
The owner told Bild: "This is terror in Cologne. Someone detonated a bomb even though they must have seen that people were there. I estimate that the property damage is worth 100,000 euros."
The area was closed off and a large police force was deployed to the scene.
(Unioneonline/L)
