After reprinting the French satirical paper Charlie Hebdo's Mohammed cartoons, the German newspaper Hamburger Morgenpost was firebombed on Jan. 11, Sunday, Metro reported.
Police said that "rocks and then a burning object were thrown through the window. Two rooms on lower floors were damaged but the fire was put out quickly."
The authorities said nobody was hurt in the arson attack. State security has opened an investigation and two people were detained.
Locally, the Hamburger Morgenpost is known as the Mopo. It has a circulation of approximately 91,000.
After the Charlie Hebdo shooting, the Mopo featured three Charlie Hebdo cartoons on its front page with the headline, "This much freedom must be possible!"
According to police, the "key question" is whether there was a connection between the arson attack and the Charlie Hebdo cartoons and it was "too soon" to confirm.
Authorities refused to reveal further information about the suspects and the Hamburger Morgenpost has yet to issue a statement regarding the arson attack.
Meanwhile, Australian cartoonists said the Charlie Hebdo shooting will not tell them what they can and cannot draw despite the deaths of 12 people and one police officer during the attacks in Paris as well as the deaths of four hostages during a recent Jewish supermarket attack.
"It was an attack on the freedom of expression. They feel much more perhaps overtly than we do in Australia, an attack on the freedom of the press," Australian cartoonist Patrick Cook told ABC News 24. He was in Paris when the Charlie Hebdo shooting took place.