Reports saying the cell was planning “imminent terror attack.”

Via ABC News:

Counter-terror police, in a series of raids, rounded up suspects they believed were intent on launching terror operations in Belgium, officials said.

At least two suspects died during the raids, and another was injured, officials told members of the media today. The officials said no police or civilians were injured after the suspects opened fire with automatic weapons.

A neighbor at one apparent raid in Verviers, Belgium, near the city of Liege, told ABC News he heard two big explosions and dozens of gunshots over about five minutes. Four to five police cars remained on the scene, the neighbor said, though the incident appeared to be over.

Belgium has sent a bigger proportion of foreign fighters than any other western nation, more than 350 from a country of about 11 million, according to the European Union law enforcement agency EuroPol. Security officials believe 28 residents from one Brussels suburb alone, Vilvoorde, have traveled to fight in Syria.

News of the police operation came one week after violence in neighboring France, where a massacre at the offices of newspaper Charlie Hebdo and a subsequent pair of hostage situations left at least 17 people dead.

UPDATE: Islamic State most likely.

Brussels (AFP) – Police on Thursday shot dead two suspects in eastern Belgium as they were about to launch “large-scale” attacks in the country after returning from Syria, prosecutors said.

They said a third suspect was arrested in the eastern town of Verviers and that the police had carried about 10 raids in all, including in the capital Brussels, after surveillance suggested an attack was imminent.