VIDEO: A mother lost her youngest child, and two of her other children remain in critical condition, after a devastating fire at an apartment building in the Fordham section of the Bronx on Monday.

Seven people were injured in total.

The child who died has been identified as 1-year-old Liam Parks. His 6-year-old twin siblings were hurt in the blaze.

FDNY officials say the fire started just before 3:40 p.m. at a six-story apartment building at 2609 Bainbridge Ave. and East 193rd and 194th streets.

A neighbor told Eyewitness News that the flames broke out in the second-floor apartment of a woman with four children, adding that the mom went to the store and left her eldest daughter to watch over her three other kids, a toddler and a pair of twins.

When the fire started, a neighbor says he tried to help and the smoke was too strong to get through the front, so he tried getting in through the back of the apartment but had trouble.

WABC-TV ABC 7 New York City

One child killed, two injured in Bronx fire