Huge fire at senior residents' community in Pennsylvania

Video. Huge fire at senior residents' community in Pennsylvania

The blaze forced dozens of senior residents, some of them in wheelchairs, to evacuate their homes during the middle of the night.

The blaze forced dozens of senior residents, some of them in wheelchairs, to evacuate their homes during the middle of the night.

Images from a helicopter show them lining up along the streets in West Chester wrapped in blankets in the freezing cold.

Chester County emergency officials say at least 20 people have been taken to local hospitals for treatment.

It’s not yet known what sparked the fire.

By Chris Pilcher