Belgium scheduled to play Portugal in a friendly international match next week.

The Belgium national team have cancelled their scheduled training session in the wake of the explosions at Brussels airport and on the city’s metro network on Tuesday morning.

Twenty three people hare reported dead in the explosions, with scores more injured.

All flights have been cancelled and residents of the city have been advised tio stay indoors for the time being. Belgium’s terror alert level has been raised to maximum. Security has also been tightened at all Paris airports.

The Royal Belgian Football Federation (KBVB) said via its Twitter account for the national team that “football is not important today” and that their thoughts were with the victims as they cancelled their training session ahead of the friendly with Portugal on March 29.

Belgium’s national team were joined by others on Twitter showing their support, including Tottenham Hotspur defender Jan Vertonghen, who wrote: ‘Can’t believe I’m reading these things again…’

Liverpool goalkeeper Simon Mignolet also wrote ‘#Zavatem’ – the name of the airport which was attacked – with a praying emoticon.

The explosions happened only days after Salah Abdeslam, the prime suspect in the Nov. 13 Paris attacks that killed 130 people, was arrested in Brussels.