Chinese Premier Li Keqiang on Tuesday extended condolences to his Belgian counterpart Charles Michel following the deadly attacks in Brussels on Tuesday morning.
Li said in the message that he strongly condemned the cruelty of the terrorists, while expressing his deep condolences to the victims and their families.
"China firmly supports Belgium's efforts in cracking down on terrorism and safeguarding national security," said Li, expressing a willingness to step up cooperation with Belgium and the international community in combatting terrorism.
At least 34 were killed in a series of terrorist attacks on Tuesday morning in the Belgian capital.
Police issued a photograph on Tuesday evening of a man they are urgently seeking, on suspicion of being involved in the Brussels airport attack.
Tuesday marked a tragic day for Europe's heart -- Brussels, a city that boasts the capital of the European Union. Multiple deadly bomb attacks for which the Islamic State (IS) claimed responsibility hit Brussels Tuesday morning at its airport and a metro station close to EU institutions, killing at least 34 people and injuring 170 more.