Police were called to the apparent road rage incident at about 10:30 a.m. Witnesses said two drivers had stopped their cars on the right shoulder of northbound I-270 just north of where it splits from the Beltway.
Some folks were apparently recording the altercation instead of attempting to stop it, according to scanner reports.
By the time the police arrived, a physical altercation had taken place. Several other drivers reportedly pulled over to break up the fight.
Both Montgomery County and Maryland State Police were called to the scene. Traffic returned to normal shortly after the incident.