NORTHAMPTON COUNTY (CBS) — A firefighter was injured while battling a three-alarm house fire that broke out at a twin home on East 8th Street in Bethlehem just before 10 a.m.

According to officials, the firefighter dove out of a second story window when the walls began to fall, and shattered his left ankle.

He was transported to St. Luke Health Network and is expected to be okay.

This story is developing. Check back for updates.