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Missing Manhattan siblings feared dead after terrorist bombings at Brussels Airport, family says

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NEW YORK -- Two missing siblings from Manhattan who were at Brussels International Airport during the terrorist bombings are presumed to be dead, according to their family.

In a statement provided to CNN Thursday, the Pinczowski family said neither Alexander nor Sascha's names were on the list of surviving victims after a series of ISIS bombings at an airport and subway station killed at least 31 and injured hundreds throughout Brussels.

"The Belgian Authorities tonight provided, to the families gathered at Astrid Hospital in Brussels, a list of the names of all remaining victims of the tragedy of March 22 who remain alive. Sadly, our beloved Alexander and Sascha were not among them."

Alexander was on the phone with his mother, waiting at the Delta ticket line with his sister at Brussels Airport to board a flight to JFK when the line dropped.

After not hearing from them immediately following the attacks, their loved ones sought help on social media in hopes of finding them safely.

Two days later and no word, their family fears the worst.

"We ask for continued prayers and privacy during this time of grieving as we await final closure," they said.

Both Pinczowskis lived in Manhattan, where Sascha studied at Marymount Manhattan College and worked as a production intern for an events company in Chelsea. Alexander was engaged to Cameron Cain – the daughter of former U.S. ambassador to Denmark Jim Cain – and was supposed to fly with her to Raleigh for a friend's wedding this week, according to ABC.

A U.S. official told the Associated Press Friday at least two of the four Americans missing in the wake of the attacks are dead, but did not identify the deceased.