The attacks demonstrate the remarkable adaptability and scale of the ISIS threat that faces Western societies.
Sweden is the latest to be victimized after France, Germany and England in the past two years.
The man named as French national Mohamed R, was driving at high speed down Antwerp's main shopping street with weapons in his car.
The cousin of the el-Bakraoui brothers spent years in Iraqi imprisonment before returning to Europe.
Suspect's brother was initially arrested but is released after going before a judge.
A parliamentary commission has recommended setting up a national counter-terrorism hub.
Witnesses saw the individual acting suspiciously near the City2 shopping center.
Belgian police raid Brussels apartment and arrest man on charges related to extremism.
The release comes as fears about extremist attacks rise ahead of the start of the tournament.
Copenhagen police have been called over exhibition that plans to show the other side of "martyrs."
Four people were arrested in Birmingham and one person at London's Gatwick airport.
The EU had reportedly warned Belgium over airport security before the attacks.
Khaled Zerkani has links to suspects in the Paris and Brussels attacks.
A further three people were arrested in connection with the November 2015 attacks in Paris.
Militant cell changed its target to Brussels as police investigation into Paris attacks unfolded.
All of the main suspects in the Brussels and Paris attacks appear to have been taken off Europe's streets.
Bilal El Makhoukhi was released from custody just last month after 2015 conviction.
The unidentified third suitcase bomber, who failed to detonate his device, is seen running from the airport.