It's a glorious building that looks to be a total loss. We pray that no one has been injured.
Update: It used to be one of ours. The Serbian Orthodox Cathedral of St. Sava, formerly known as Trinity Chapel, was purchased from the Episcopal Diocese in New York in 1943 and consecrated in 1944. It was originally built to serve the what was then the "rural" Episcopal community and designed in 1850 by architect Richard M. Upjohn in the Gothic Revival style. Upjohn also designed, among many other Episcopal parishes, Christ Church in Canaan, Connecticut [now closed] and St. Thomas in Amenia, New York.