Brussels, Belgium (CNN) Police detained six people in raids Thursday night as investigators raced to uncover the network behind this week's terror attacks in the Belgian capital. The Belgian federal prosecutor's office didn't provide details about who had been detained in the Brussels raids, why they had been apprehended or whether they will face charges. "It will be decided tomorrow if these people will remain in custody," the office said in a statement released late Thursday. Two people were taken into custody in Brussels' Jette neighborhood, one person was detained in a different part of the capital, and three people were in a vehicle in front of the federal prosecutor's office when authorities apprehended them, public broadcaster RTBF reported.Police seal off streets as teams in hazmat gear comb a building in BrusselsReport: Three people are detained in a vehicle in front of the federal prosecutor's officeThree attackers are dead, and authorities are looking for two others
That man, they say, shown in photographs wearing a black hat, was one of three attackers at _.