The Dallas County Sheriff’s Office is investigating a fatal accident that happened Tuesday along Interstate 20 in Dallas County near St. Augustine.

When asked by The Dallas Express, the sheriff’s office said two vehicles were involved in the accident and confirmed two pedestrians were fatally struck.

The crash happened just before 3 a.m. causing the freeway to be shut down for hours, authorities said.

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Dallas County deputies and Texas Department of Public Safety troopers closed the eastbound lanes of I-20 near Saint Augustine between Hutchins and Balch Springs.

Traffic was diverted off the interstate to Dowdy Ferry Road.