This story has been updated.
An overturned truck caused heavy delays in both directions on a stretch of I-684 in Katonah during the Thursday morning commute.
The incident occurred on the northbound side near the Saw Mill Parkway junction just past 7:30 a.m. The vehicle was on the median of the highway, but two lanes were initially blocked near the scene of the accident.
Traffic was backed up to Route 172 in Bedford (Exit 4).
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