Investigators search for cause of Uber St. fire

September 6, 2012 3:00:17 PM PDT
Investigators are still looking for a cause in the fire that sent a grandmother and her grandchildren to the hospital.

The flames started Wednesday on the 2100 block of Uber Street in North Philadelphia.

1-year-old Aliyana Wilis and her 8-year-old sister Myana have serious burns. They are both listed in critical condition at St. Christopher's Hospital for Children.

56-year-old Janet Willis remains in fair condition at Temple University Hospital.

She suffered smoke inhalation as she pulled the two girls from the home.