Two NYC residents confirmed killed in Brussels attacks

A brother and sister who had been living in New York and were among those missing following the terrorist attacks in Brussels, Belgium, were killed in the attacks, CBS News has been told.

Sascha and Alexander Pinczowski have family in the Netherlands and were Dutch citizens but had been residing in New York City, CBS New York reported.

A statement provided to CBS News on behalf of the family says, "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 Sacha were not among them.

"The family would like to thank the Dutch Embassy and Delta Airlines for all of their support in our search in Brussels. We especially thank all of our friends and family, across two continents, for their expressions of love, support and prayers for Sascha and Alex. We ask for continued prayers and privacy during this time of grieving as we await final closure."

Many posts about their disappearance appeared on social media.

They were reportedly on the phone with their mother when she heard an explosion and the phone call disconnected.

It wasn't immediately clear whether they siblings lost their lives in the blast at the Brussels airport or in the subway there.

Also, a couple with ties to Kentucky, Stephanie and Justin Shults, remain among the missing. Their family has received conflicting reports about their status.