This story has been updated.
An accident that initially blocked the left lane on the southbound Palisades Interstate Parkway caused heavy delays in Rockland on Wednesday morning.
The accident, reported at 8:15 a.m. is at Exit 9 (I-87/I-287) caused backups to Exit 11 (New Hempstead Road).
An accident reported at 8 a.m. on southbound I-87 initially blocked the shoulder at Exit 12 (Route 303).
Traffic was heavy on the southbound thruway through the Tappan Zee Bridge span during the morning commute.
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