President Barack Obama asserted Tuesday that the United States “stands in solidarity” with the people of Belgium after terrorist attacks in Brussels.

Obama spoke in Havana in the third day of his Cuba visit to the Cuban public about human rights in the communist country.

He opened the remarks referencing the terrorist attack in Brussels, where at least 31 were killed terrorist attacks carried out by the Islamic State. The attacks hit the city’s airport and metro stations.

“Before I begin, please indulge me. I want to comment on the terrorist attacks that have taken place in Brussels,” Obama said.

“The thoughts and the prayers of the American people are with the people of Belgium, and we stand in solidarity with this in condemning the attacks against innocent people,” Obama said. “We will do whatever is necessary to support our friend and ally, Belgium in bringing to justice those who are responsible.”

He addressed the attacks for roughly one minute before switching back to his planned Cuba remarks.

“This is yet another reminder that the world must unite. We must be together regardless of nationality or race or faith in fighting against the scourge of terrorism,” Obama said. “We can and we will defeat those who threaten the safety and security of people all around the world.”

Obama spoke by phone Tuesday with Belgian Prime Minister Charles Michel to offer his condolences, according to the White House. The president offered any assistance necessary for the investigation. Obama also said the United States stands with the people of Belgium, as well as NATO and the European Union, both located in the city.

Watch Obama’s comments below:

This post was updated to include information about Obama’s phone call with Belgian Prime Minister Charles Michel.

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