A day after three separate explosions killed dozens and injured hundreds in Belgium's capital, Brussels remained tense.

The airport where two of the bombs went off remained closed on Tuesday, but officials did not declare a city-wide lockdown.

Public transit continued to operate and schools and businesses were open. But an increased security presence patrolled the city streets, watching over pedestrians.

CTV News’ Paul Workman and Genevieve Beauchemin were both in the Belgian capital on Tuesday, speaking with locals and reporting on the city as it emerges from the tragedy.

Tourists and other visitors lined up outside hotel entrances, waiting to go through extra security checks.

And officials continued to hunt for the top suspect in the deadly bombings: a man suspected of constructing the explosives that killed civilians both in Belgium and in Paris last November.

But even amidst the heightened security, residents emerged from their homes on Tuesday to join together in mourning.

In the Place de la Bourse, the former stock exchange building in downtown Brussels, hundreds of mourners shared a moment of silence and solidarity.

The pavement of the pedestrian area was covered in colourful chalk drawings and messages.

And musicians played music in honour of those affected by the violence.

At least 34 people died and more than 200 people were injured when bombers set off explosions at the Brussels Airport and the city's Maelbeek subway station.

Islamic State militants have claimed responsibility for the carnage in Brussels, and the attacks have also been linked to the November 13th attacks in Paris.

With files from CTV's Paul Workman, Genevieve Beauchemin, and The Associated Press