2 children die in Sacramento house fire

Two children died in a house fire early Tuesday morning in South Sacramento.

A six-year-old boy and an 11-year-old girl were trapped on the second floor of the house, when the staircase collapsed.

Fire crews tried to get them out through a window but were unsuccessful.

Five other people who were on the first floor of the home were able to get out safely.

The cause of that fire is under investigation.