A 21-year-old man was arrested on suspicion of an arson attack on the home of Swedish cartoonist Lars Vilks on Sunday morning, according to a DPA report.
No further details were immediately available.
Police said the side of the house was lightly damaged by a Molotov cocktail thrown through a window of the house. No one was injured; the house was empty, and the fire went out on its own.
Vilks has been threatened constantly since 2007, when he drew Muslim prophet Muhammad as a dog.