Around 150 people were evacuated from nearby buildings, and thousands of properties were without power.
Sa'ar expressed his condolences "for the terrible tragedy in which more than 50 people were killed and dozens were injured in a fire."
There have been no reports of any casualties from the incident.
Paramedics arrived at the scene and pronounced the man dead after receiving initial reports at around 4:45 a.m.
The plane successfully landed back at Newark airport with no reported injuries, according to the FAA.
Emergency responders evacuated residents while firefighters worked to contain the blaze and prevent further damage.
The Abington Township Police Department said there was an explosion within the building and flames could be seen inside the warehouse structure, citing statements from witnesses.
The fire was reportedly caused by a radiator plugged into an electrical outlet resulting in the apartment being completely engulfed in flames and the personal belongings of 19 students being burned.
An exclusive dispatch for the Post from the famed indie film festival.
The vast Amazon rainforest bore the brunt of the devastation, accounting for approximately 17.9 million hectares of the total burned area, which is 58% of the overall destruction.
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