Four people have died following Wednesday's fatal fire at the Patterson Houses on Morris Avenue, the FDNY says.

Fire officials say 33-year-old Syida Adams and her sons - a 16-year-old and 15-year-old died on Friday from their injuries. The youngest son, a 10-year-old, died on Wednesday.

Authorities say Adams' husband remains in critical condition.

The fire happened early Wednesday morning inside the family's apartment on the 11th floor. Officials say it was caused by a lithium-ion battery inside an e-bike.

Officials have said that the e-bike blocked the family's only exit.