The Belgian Foreign Ministry confirmed on Friday that Andre Adam, a former ambassador to the United States during the Clinton administration was killed in the attack on the Brussels airport. Adam's wife survived the attack, according to family members.
Identifying the victims remains a slow process and Belgian authorities say just nine out of 31 victims have been identified. So far the victims were from six nations. Currently authorities have identified three Dutch citizens, two Americans and citizens from Peru, United Kingdom, China and France among the victims.
The two Americans killed in Brussels this week have been confirmed as the spouses of U.S. personnel.
A U.S. official confirmed to ABC News that the two Americans were living in Europe at the time of the attacks. Their names have not been released and the families have asked for privacy.
Editor's Note: An earlier version of this article mistakenly stated Andre Adam's wife was killed in the blast. Her family told ABC News she survived and is in stable condition.