A bomb has damaged the offices of the "Vijesti" daily in the Montenegrin capital, Podgorica.
An unknown explosive device detonated near the newspaper's offices overnight, damaging an editorial room in the building's basement.
The newspaper's chief editor, Mihailo Jovovic, said no one was injured.
Security cameras recorded two unknown individuals approaching the building around 2300 local time on December 27.
One of the assailants is seen leaving a device near a window.
The device explodes minutes later. Reporters from "Vijesti" have been the target of previous attacks.
The newspaper's director, Zeljko Ivanovic, condemned the bombing, accusing Montenegrin authorities of creating what he called an "atmosphere of hatred of free speech and impunity for attacks against the media."