One man was arrested and another man was taken away in a rescue truck after a fight inside a car in the northbound lanes of Interstate 95 near Ives Dairy Road on Thursday afternoon, according to the Florida Highway Patrol.
FHP spokesman Joe Sanchez said one man struck the other with a boxcutter. It is not clear whether any other vehicles were involved.
A federal agent drove up on the incident, but was not involved, Sanchez said.
Several police agencies including North Miami Beach and Aventura responded. At least two lanes were shut down during the investigation.
This story will be updated as more information becomes available.