Attackers rammed a car through the gates of Belgium’s national crime laboratory on Monday in Brussels and then started a fire in what officials said may have been an attempt to destroy evidence.
Five people were arrested nearby but later released, while prosecutors said there was no confirmed link to terrorism so far. No one was injured in the fire or by a large explosion which shook houses nearby.
The incident comes as Belgium remains on high alert following suicide attacks on the capital’s airport and metro system in March which were claimed by the Islamic State (ISIS) group.