"There is a lot of intelligence, for example signs that foreign terrorist fighters, combatants in Syria, want to return not just to Belgium, but to Europe to carry out an attack," Paul Van Tigchelt, the head of the government crisis centre, told RTBF television.
Tigchelt said Belgium would maintain its terror alert at level 3, the second highest, for a "terrorist threat to the whole country", adding that it meant that the threat was "still considered serious, grave and likely".
Security was still tight at key sites such as airports, railway stations and nuclear power stations, he said, adding that public areas such as shopping malls and cinemas could also benefit from more security.
Two suicide bombers blew themselves up at Brussels airport and a third at Maalbeek metro station in the country's worst ever terror attacks.
A fourth bomber whose device did not go off, Mohamed Abrini, was arrested on April 8 in Brussels.
Paris attacks suspect Salah Abdeslam is awaiting extradition to France following his arrest in Brussels on March 18.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
