A bus carrying refugees was attacked by a crowd of people as they were being taken to a hostel in the eastern German town of Jahnsdorf, police reported Friday.
The group prevented the bus from passing and then threw missiles and fireworks at it on Thursday evening, police in the city of Leipzig said.
A firework injured the bus driver on his foot. One of the windows of the bus was broken.
The refugees were subsequently taken to alternative accommodation.
There have been repeated attacks on refugee centers in Germany in recent months, with the pace continuing after German Chancellor Angela Merkel indicated the country was opening its doors to refugees fleeing wars in Syria and Africa.
On Thursday, a fire broke out at a hostel for migrants in the south-western town of Herxheim, where an arson at another home for asylum seekers had shocked residents six days earlier.
During the latest fire, care workers and nine asylum seekers evacuated the building, part of a stadium grandstand, without injury. One fire officer was slightly hurt in the incident.
The cause of the fire had not immediately been determined but arson could not be ruled out, police said.
A week ago, there was an arson attack on a refugee center in the town, when a canister of flammable liquid was thrown on a skylight.
A fire that destroyed buildings housing refugees in a small city north of the northern port of Hamburg overnight on Tuesday was caused by arson, police said.
The blaze destroyed three buildings in the center of Heide, a town of 21,000 people near the North Sea coast. There were no injuries.
