The commemoration takes place at the hall of Hanoi Towers on Hai Ba Trung Street.-- Photos: VNA

The image of cartoon character Tintin crying is displayed at the ceremony.

Tintin is the main character of a famous comic series created by Belgian cartoonist Georges Remi under the pen name Herge.

The participants hold a one-minute silence in memory of the victims of the Brussels attacks.

Many Vietnamese and foreign diplomatic officials attend the ceremony

A number of Vietnamese people and foreigners are present at the event

Participants write down words in commemoration of the victims

Candles are lit at the commemoration