Belgium lowered the security threat level in Brussels on Thursday, ending six days on maximum alert, but the prime minister warned that the risk of a Paris-style attack remained serious.
"We remain on guard," Charles Michel told a news conference. "The situation is serious, but according to indications from the security services, not as imminent as previously assessed."
Police and troops would remain on the streets, albeit possibly in lesser numbers; the metro, partially reopened along with schools on Wednesday after a four-day lockdown, would run normally on Friday. The safety of large gatherings such as sports events would be reviewed case by case, Michel added.