After a day of bloodshed in Brussels, crowds gathered in a central square to leave flowers, messages and candles for over 30 dead in attacks claimed by the Islamic State militant group.
Videos posted on social media showed a circle of people arm-in-arm quietly singing John Lennon's "Imagine" at the Place de la Bourse, a popular meeting place right in the center of the city, on Tuesday evening.
By the end of the day the square had become a makeshift memorial to the victims and a love letter to Brussels, the ground covered in chalk messages of hope, anger and unity, and strewn with candles and flowers.
Belgian Prime Minister Charles Michel visited the square late Tuesday to light a candle for the dead.
Across the city, the same song pealed from a bell tower of the historic library of Brussels' oldest university as night fell.
"Hope must survive," the University of Leuven wrote in a Twitter post about the gesture of solidarity with the grieving city.
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