Many are still keeping vigil at sites in Brussels after terrorist blasts killed more than 30 people earlier in the day.
Around the world, tributes arose, with thousands showing their support for those killed, wounded, and affected by the trio of blasts that hit the Brussels airport and a metro station. In Washington, many visited the Belgian embassy in northwest D.C.
Secret Service police swept the grounds of the embassy Tuesday evening as U.S. Secretary of Homeland Security Jeh Johnson spoke with Belgium Ambassador Johan Verbeke to address any security concerns and offer support.
“It is my desire to be here and express my condolences on behalf of the department,” Johnson said.
People brought flowers to a growing memorial outside the embassy to honor the lives lost in Tuesday’s terrorist attacks in Brussels.
“It was my mother's idea,” said high school student Danny Overcash. “We have family back in Belgium, a lot of family actually. My grandfather was an immigrant during World War II, so we are just keeping them in our thoughts and our prayers during all this horrible stuff that's going on over there right now. “
Evangelist Mary Clement, of Silver Spring, spent almost an hour outside the embassy.
"The people of Belgium were so hurt today,” Clement said. “Everybody is sad."
Verbeke thanked everyone who called, emailed and stopped by the embassy for their thoughts and prayers.
“We are a resilient people,” Verbeke said. “We’ll stand on our feet. And I'm sure that with the strength, not just of our own security service and intelligence community, but also the strength of the International community, we will overcome this, and we will survive."