BRUSSELS (CBSNewYork)– Belgian authorities have charged three men with terrorism offenses after a series of raids linked to Tuesday’s bombings in Brussels.

Thirty-one people were killed and at least 270 injured, CBS News’ Kenneth Craig reported.

Among the injured is Mormon missionary Joseph Empey. His parents told CBS News that he suffered burns and wounds to both legs.

“I wondered if I’d feel anger when I saw the pictures of the suspects and I truly didn’t. I felt complete gratitude that my son was alive,” the victim’s father Court Empey said.

Prosecutors said a man only identified as “Faycal C” was arrested Thursday. He’s now facing terrorism and murder crimes.

Belgian media reported that a man named Faycal Cheffou had been identified as the mystery man seen with the two airport suicide bombers.

There was a heavy security presence at Brussels Airport this weekend, which has been closed since Tuesday’s bombings. Authorities said they’ve finished their investigation of the crime scene and engineers are now accessing the damage.

“We also have to look at security measures because our security levels have risen in our country,” Brussels Airport Spokesperson Anke Fransen said.

A solidarity march scheduled for Sunday has now been postponed following security concerns that the police department is stretched too thin.

Still, hundreds of people returned to the growing memorial Saturday to share their grief and sadness.

While prosecutors have not yet confirmed the identity of the third airport attacker, they did say a police raid at his home turned up no explosives or guns.