8:37 PM: Police and Fire are on the scene of a crash at 39th SW/SW Barton in Upper Fauntleroy [map] and have just told dispatch that Barton is completely blocked. The initial report was that a driver crashed into parked cars.

(Added: Reader photo)

8:39 PM: The driver was initially described as a man around 60 years old, and they’re now saying this was a “medically related collision.”

8:43 PM: Police say eastbound traffic on Barton has resumed but “westbound’s going to be blocked for a while.”