Police said that witnesses had alerted police to the situation in the early hours of Monday.
Police told DPA that they could not confirm reports of guns, an axe or a knife being used.
Express reported that witnesses saw three or four people arguing with another man, and that the men were all well-dressed.
Witnesses also told Express that the men had attacked one another using axes.
The man who appeared to be on his own, fighting the others, was wounded with a knife and tried to escape by running to his Mercedes. The other men then shot at him, but only hit his car.
Police ultimately found the injured man and stopped two possible suspects.
Express reports that two other suspects are still at large.
More to follow
Article source: http://www.thelocal.de/20160815/man-injured-in-violent-attack-in-cologne