ATCEMS responds to 'critical incident' near MoPac, US 183

First responders are at the scene of a "critical incident" at North MoPac Expressway near the U.S. Highway 183 flyover, Austin-Travis County EMS said on Twitter Wednesday night.

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AUSTIN (KXAN) — Multiple first responders are at the scene of a "critical incident" at North MoPac Expressway near the U.S. Highway 183 flyover Wednesday evening, Austin-Travis County EMS said on Twitter Wednesday night.

ATCEMS said there is no danger to the public.

Drivers should expect significant delays and closures on the northbound side of MoPac, ATCEMS said. ATCEMS responded to the incident around 6:20 p.m. Wednesday.

This developing story will be updated as more information becomes available.