Authorities say a toddler pulled from a central Florida mobile home that caught fire and killed his twin also has died.

Fire officials say an 18-month-old boy died Wednesday afternoon at the scene in Lake County. Authorities said Thursday that his twin died hours later at a hospital.

Two others were injured in the fire. A 57-year-old woman was taken by helicopter to a hospital in critical condition, and a 32-year-old woman was transported by ambulance.

Fire officials described the Pine Lakes home as completely decimated. It exploded and caught fire Wednesday afternoon. The cause of the explosion is being investigated.