Many police in the Kreuzberg district because of the crisis and alter-shaped cases and was hospitalized.
Four people were injured in a shooting in the German capital, Berlin, in the early hours of Saturday, police said. Police said they arrested the unidentified perpetrators who fled the scene.
A police spokesman said four people had been taken to hospital after an altercation with several people in Kreuzberg district.
Armed police officers search by foot and helicopter near the headquarters of the Social Democrats (SPD) in Germany.
Three injured people were found on the road. Fourth place was pulled from a canal in Inya, injuring his leg.
Mass shootings are rare in Germany.
In October last year, an attacker from the right entered the synagogue with a handgun and shot dead two men in the eastern Halle.
2016 In July, a teenager allegedly took a pistol illegally bought online before making a weapon to kill nine people at the Municipal Shopping Center. Bought illegally online.
The 29-year-old recently opened fire on about 10 people in a ground floor apartment and a car in Kreuzberg.
More to follow