Even as authorities identified the woman killed in Saturday's gas explosion in Brooklyn, officials said Sunday afternoon they still trying to locate one woman not heard of since before the blast.

Ligia Puello, 64, lived in the third floor of the Borough Park building on 13th Avenue near 42nd Street. 

RELATED: Brooklyn gas blast kills 1, injures 3

Officials said shortly after the explosion that Puello was killed as she walked on the stairwell not far from the source of the fire.

Paramedics found her unconscious and unresponsive at the scene, and declared her dead shortly thereafter.

It's unclear what condition other residents hurt in the explosion are currently in, although the city says one person was reported with severe injuries, one with moderate injuries and 10 with minor.

Police confirmed Saturday that the injured included an unidentified 34-year-old man with a fractured leg and ankle. His 9-year-old son suffered from his own leg injury.

RELATED: At least 2 still missing, 22 injured in East Village gas explosion: Officials

Another 27-year-old man also had minor injuries to his leg and was treated. All three were treated at New York Methodist Hospital.

Police remained at the scene on Sunday, barricading the area and helping tenants access certain buildings not declared to be structurally dangerous.

In all, 49 New Yorkers are currently out of their homes and are either staying with family and friends or in hotel rooms provided by the American Red Cross.

Investigators believe the explosion was caused by a gas leak after residents on the second floor moved out and took a gas stove they bought with them.

FDNY Commissioner Daniel Nigro told reporters on Saturday the former tenants might not have shut off the gas line after removing the stove.