Trooper Kyle VanHart from PSP-Embreeville rescued a mom, her two children, and their dog from a flooded roadway at South Bailey Road and Lincoln Highway around 12:15 p.m., state police confirmed.
A bystander also assisted in the rescue.
Meanwhile, firefighters from Thorndale Fire Company assisted four more people out of a nearby van, Irish Eyez Photography reports.
It is not common that troopers assist in water rescues but when "duty calls, [we] will answer that call," Kevin Kochka, PSP Public Information Officer for Troop J told Daily Voice.
A flash flood warning continues for the East Branch Brandywine Creek below Downingtown until 10 p.m., Accu Weather says.
Click here to follow Daily Voice Bristol and receive free news updates.