UPDATE: I-29 near Summit reopened

UPDATE: Troopers have reopened a portion of I-29 near Summit after it was temporarily closed due to downed power lines.

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Authorities say a portion of Interstate 29 in northeast South Dakota is closed due to down power lines.

The South Dakota Highway Patrol says the lines are down across all lanes of traffic near mile marker 208, which is near the Summit exit.

Troopers say they are assessing the situation, and are asking drivers to avoid the area until the situation is resolved.