The injured Manchester City star has urged people to "reject hate and its preachers" in the aftermath of several explosions in the Belgian capital.
Belgium captain Vincent Kompany was left "horrified and revolted" by the suspected terror attacks that hit Brussels on Tuesday.
Explosions at Zaventem Airport and Maelbeek metro station in the Belgian capital killed 26 people and injured 136, according to the latest official figures.
The Royal Belgium Football Association (KBVB-URBSFA) announced the cancellation of a scheduled national team training session in the wake of the news.
Kompany is not part of Marc Wilmots' squad, which faces Portugal in Brussels on Friday, due to a calf injury sustained during Manchester City's Champions League match against Dynamo Kiev last week.