Belgium anti-terror operation

Updated 4:59 PM ET, Thu January 15, 2015
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Police officers gather at the scene of an anti-terrorism operation in Verviers, Belgium, on Thursday, January 15. Two people were killed during a raid on a suspected terror cell, Belgian authorities said. A third suspect was injured and taken into custody. JULIEN WARNAND/EPA
Police block a street in Verviers.
Police officers work in Verviers after the raid. Bruno Fahy/AFP/Getty Images
Police set a large security perimeter in the center of Verviers. A senior Belgian counterterrorism official told CNN that the alleged terror cell is believed to have received instructions from ISIS. BRUNO FAHY/AFP/Getty Images
The trio targeted in the raid had been under surveillance for some time, prosecutor's spokesman Thierry Werts told reporters. BRUNO FAHY/AFP/Getty Images
Verviers is about 69 miles (111 kilometers) east-southeast of Brussels. BRUNO FAHY/AFP/Getty Images
CNN affiliate VTM reported that the terrorism investigation started weeks ago. BRUNO FAHY/AFP/Getty Images