Belgium has reduced the threat level in Brussels from its highest level of four to three.
The city was locked down for nearly a week, with schools, universities, and the metro system closed and soldiers deployed on the streets.
The alert was raised after fears of a Paris-style attack. Some of the Paris suspects lived in Brussels. At least one, Salah Abdeslam, is still at large.
130 people were killed in the Paris attacks and more than 360 wounded.
Police in Belgium have mounted a number of raids and searches over the past two weeks and have charged five people with terror-related offences.