The police in Belgium arrest 4 people, suspected of planning an attack in Brussels

The police in Belgium have arrested four people suspected of planning an attack on the concert hall in Brussels, the federal prosecutor's office announced on Monday, the "AP" agency reports.

The arrested adult has been accused of "participating in the activities of a terrorist group" with the intention of carrying out an attack, the prosecution said.

Three minors have also been arrested.

"According to the initial investigations, it appears that the concert hall in Brussels was a specific target, while the attack was being planned within a few weeks", the office said.

Belgium has been rocked by extremist attacks in recent years. The latest attack occurred in October, when two Swedish soccer fans were killed in Brussels.

A court last year found six people guilty of terroristic murder for attacks on the Brussels airport and metro in which 32 people were killed in 2016.

Among those convicted for his role in the 2016 attack was Salah Abdeslam, who is serving a life sentence in France for his role in the attacks that hit Paris cafes, the Bataclan concert hall and the national stadium of Paris. football in 2015.

The attacks in Paris and Brussels were linked to the same IS network.