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ATLANTA -- Many of the traffic incidents that caused headaches and delays for commuters across metro Atlanta Thursday morning have since been cleared.

Traffic is still heavy on northbound Interstate 75/85 between Langford Parkway and Interstate 20. Three left lanes of westbound I-75/85 were blocked at University Avenue due to a four-car crash. Another nearby crash involving an overturned bus has since been cleared.

A crash on southbound I-85 at the I-285 eastbound ramp caused some backups on I-85. Georgia Department of Transportation spokeswoman Chata Spikes said the accident involved a tractor trailer and a car. One person was injured; the extent of the injuries is not yet known.

One left lane was blocked on southbound I-285 at Monroe Drive. Two left lanes were blocked on westbound Highway 78 at Mountain Industrial Boulevard in DeKalb County.

A two-car crash also blocked the center lane of northbound I-75 at Jodeco Road in Henry County.

Get the latest traffic conditions in metro Atlanta at 11Alive.com/Traffic.

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