The DNA of one was found on a charger belonging to Coulibaly , the source told CNN . Neither Belgium nor Greece confirms whether the probe involves a jihadi cell in Belgian . Source : As many as 20 sleeper cells could be set to strike in Germany , Germany , Netherlands and the Belgium .
Neither Belgium nor Greece confirms whether the probe involves a jihadi cell in Belgian . Source : As many as 20 sleeper cells could be set to strike in Germany , Germany , Netherlands and the Belgium .