Belgium’s Euro 2024 qualifier against Sweden was abandoned at half-time for security reasons after two Swedish people were shot dead in Brussels.
The killings happened in the city hours before the game and are being treated as terrorism.
The decision to abandon the game was confirmed at about 21:30 BST.
With the gunman still at large, fans and players were ordered to stay in the King Baudouin Stadium for their safety.
An evacuation of the stadium began at about 22:45.
The Sweden team were given a police escort to the airport, while Sweden fans were accompanied by the police into the city.
On Tuesday police in Brussels are searching for the gunman who shot a man dead.
Belgian prosecutors did not confirm whether the man was the attacker, but he was likely to be the suspect, said Belgian Interior Minister Annelies Verlinden.
Sweden manager Janne Andersson said he and the players only found out about Monday’s shooting at half-time.
“When I came down for the break, I got this information. Immediately, I felt that it was completely unreal. What kind of world do we live in today?” he said.
“I came into the locker room and when the team started talking, we agreed 100% that we didn’t want to play on out of respect for the victims and their families.”
It is not yet known whether the victims were in Brussels to watch the match.
A Swedish FA social media post said: “Our thoughts go out to all the relatives of those affected in Brussels.”
The Belgium team’s account posted a statement that read: “Our thoughts are with all those affected.”