World leaders strongly denounced the terrorist attacks in Brussels on Tuesday and expressed their condolences, calling for concerted efforts to fight against global terrorism.
At least 34 people were killed in explosions on Tuesday at Brussels airport and on a city subway train, according to the latest numbers published by Belgian media.
Russian President Vladimir Putin sent a letter of condolences to King Philip of Belgium, condemning the attacks and saying the crime has no justification.
"Fighting this evil requires a most active international cooperation," Putin said in the letter, while expressing confidence that the killers and their accomplices would be punished.
In the meantime, Ukraine has tightened security measures against possible terrorist acts following the deadly explosions.
The Ukrainian Foreign Ministry has issued a travel warning for Brussels and advised its citizens to avoid public places when staying in Belgium.
Meanwhile, Indonesia also condemned the bombings. "The Indonesian government and people convey its deepest condolences to the people and government of Belgium, especially to the victims and their families," said a statement from the Foreign Affairs Ministry.
The statement also said Indonesia strongly condemns terrorism and violent activities for any reason, and called on the international community to increase partnerships in tackling radicalism and terrorism.
Vietnam on Tuesday also strongly condemned the attacks in Brussels. According to Le Hai Binh, spokesperson of Vietnam's Ministry of Foreign Affairs, "Vietnam wishes to share in the big losses that the Belgian government, people and families of the victims are suffering."