WATCH: First responders chase tiny dog down freeway in DC

A little dog named Astro appears to be okay after leading first responders on a chase down a Washington, D.C. Expressway.His owner was involved in a crash.First responders put him in a firefighter vehicle but when Astro's owner went to get him he escaped.The high-energy pup was too fast for rescuers to catch, as he sprinted down the beltway.Some drivers stuck in traffic even tried to help but they failed, too.Astro eventually veered into the woods and finally slowed down enough that authorities