Emergency services were called to the crash in Edmonton on the junction of Sterling Way and Gloucester Road.
Paramedics treated three people at the scene before discharging them.
One lane was closed with congestion to Walthamstow and back over the Cooks Ferry Flyover.
A London Ambulance Service spokesperson said: “We were called at 8.27am today (13 November) to reports of a road traffic collision at the junction of Sterling Way and Gloucester Road, Edmonton.
“We sent resources to the scene, including an ambulance crew, paramedics in fast response cars and an incident response officer.
“We treated three patients and discharged them all at the scene.”
