Belgian police said Saturday they arrested 12 people believed to be planning new terrorist attacks.
The arrests came after police raided dozens of homes and more than 150 garages across the small country, Sky News reports.
The BBC, citing a report from Belgium public broadcaster RTBF, said suspects had been spotted near a UEFA European Championship fan zone in Brussels on Friday, just a day before the Belgium soccer team was scheduled to face the Republic of Ireland.
Officials said their searches didn't turn up any explosives or weapons, but the federal prosecutor said what they found during an investigation, "necessitated an immediate intervention." Just a few days before, Belgium media reported ISIS fighters were en route to Europe to potentially target the soccer tournament. On Monday, a man pledging allegiance to ISIS killed a French police officer and his partner. The suspect, whom police later killed, had posted the attacks on Facebook and also threatened the soccer tournament.
Fewer than two weeks ago, Ukrainian officials said they thwarted terrorist attacks planned around France during the UEFA European Championship.