One person is dead and another is missing after an explosion at an Elizabeth, New Jersey home that injured at least 15 others.

It is not known if the missing person is trapped in the rubble or simply out of communication with loved ones, Elizabeth Mayor J. Christian Bollwage was quoted in a New York Pix 11 report, which added that an 11-year-old is among the injured. 

Most of those in the duplex — more than a dozen in all — were in the rear of the house and some were asleep, Pix 11 reported, adding that it's not known whether there were any illegal apartments in the duplex.

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The blast on the second floor of a house on Magnolia Avenue was first reported at about 8 a.m., according to officials, sources familiar with the investigation told NBC 4 New York.

Video from the scene on Magnolia Avenue Wednesday shows damage to the front of the home, but there was no sign of fire, a related New Jersey Herald report stated, adding that there is no word on the cause and no details on the extent of the injuries.

Duane Bourne, a spokesman with Elizabethtown Gas, said a preliminary investigation found no indication the blast was gas-related, NBC claimed, adding that the explosion was near one of the runways at Newark-Liberty International Airport, but no changes to flights have been reported.