Six foreigners, including an Indian, have been injured in four separate racist attacks in eastern and northeastern Germany, authorities said on Friday.
In Weimar, in the east, three men of Mozambican and Cuban origin were attacked as they left a private party on
Thursday.
A 46-year-old Mozambican was seriously injured, and the other two victims slightly wounded.
The police said they had arrested eight men aged 19 to 29 in connection with the attack.
The prosecutor in Weimar said on Friday five people had been arrested there after an Indian trader was beaten up at the flea market in the northeastern city on Thursday.
The regional radio station NDR said the victim was attacked by a group that hurled racist abuse at him. He has been hospitalised.
In Berlin a Guinean and a Turk were injured in two seperate attacks that both took place in the underground on Thursday, police in the capital said.
They said the Guinean was hurt when a 38-year-old man threw firecrackers at him. The Turkish man was beaten up at another underground station and four men were being held in connection with the attack.
A spate of apparently racially-motivated attacks in Germany have heightened concerns about right-wing violence here as the country prepares to host the football World Cup 2006 from June 9.