An explosion injured several people and brought down a residential building in the Belgian city of Antwerp on Monday evening, police said, stressing the incident was not related to terrorism.

Belgian news agency Belga reported five people had been injured. Antwerp police said two adjacent buildings might have also been damaged in what state broadcaster RTBF said was a gas explosion.

Belgium has been on high alert since deadly suicide bombings in 2016 and a wave of Islamist attacks across Europe.

This is a breaking news story and will be updated. Check back for the fullest version. Follow HuffPost UK on Twitter here, and on Facebook here.