União das Etnias de Ijuí

BRUSSELS — A series of deadly terrorist attacks struck Brussels on Tuesday, with two explosions at the city’s main international airport and a third in a subway station at the heart of the city, near the headquarters complex of the European Union.

At least one of the two airport explosions was touched off by a suicide bomber, officials said. At least 34 people were killed — 14 at the airport and 20 at the subway station — and many more were wounded, including 92 at the airport and 106 at the subway station.

“We were fearing terrorist attacks, and that has now happened,” Prime Minister Charles Michel of Belgium said at a news conference, calling the attacks “blind, violent, cowardly.”

On Twitter, he issued an appeal to the population to “avoid all movement,” as the authorities braced for the possibility of additional violence.

The attacks, a vivid illustration of the continued threat to Europe, occurred four days after the capture on Friday of Europe’s most wanted man, Salah Abdeslam. He is the sole survivor of the 10 men believed to have been directly involved in the attacks that killed 130 people in and around Paris on Nov. 13.