The accident happened at 3:39 p.m. on Horsham Road near Keith Valley Road in Horsham.
Police say a 6-year-old child was hit by a 2011 Toyota Rav-4 traveling west on Horsham Road.
Police tell Action News the driver immediately stopped at the scene and is cooperating with the investigation.
The child was flown by helicopter to Children's Hospital of Philadelphia for treatment.
Any witnesses to this crash are asked to contact Detective Adam Dunning of the Horsham Township Police Department at 215-643-8284.
Find out about Breaking News as it happens. Sign up for 6abc.com Breaking News Alerts.