Emergency personnel are seen at the scene of a blast outside a metro station in BrusselsReuters

The Belgium national football team called off its training session scheduled for Tuesday evening in light of the blasts in Brussels earlier in the day. Explosions rocked the Belgian capital, killing several people, according to the Belgian media.

Two explosions hit the Zaventem airport at about 12:30 p.m. IST, while another struck Maelbeek metro station an hour later, according to the BBC.

"#tousensemble, our thoughts are with the victims. Football is not important today. Training cancelled. [sic]" a tweet from the official profile of the Belgium football team said.

The Red Devils, as the Belgium national football team is nicknamed, were to play an international friendly against Portugal at the King Baudouin Stadium in Brussels next Tuesday, March 29. The match has been called off now.

"The Federacao Portuguesa de Futebol (FPF) is in touch with its Belgian counterpart and the Portuguese, Belgian and international authorities, in view of the events of today and the anticipated game for Tuesday next week, [sic]" Sky Sports quoted the Portuguese Football Association as saying in a statement.

Star Belgium footballers, who ply their trade in the Premier League, expressed shock and strongly condemned the attacks.

"Horrible to see what is going on in Brussels #Zaventem [sic)]" wrote Manchester United winger Adnan Januzaj.

"Can't believe I'm reading these things again... [sic]," wrote Tottenham Hotspur defender Jan Vertonghen.