At least four construction workers were killed and six injured in a highway overpass collapse at a construction site on Tuesday morning in South Korea, an official told CNN. Two Chinese nationals are among those dead.

Emergency crews searched for survivors and worked to clear rubble from the site, which was part of a highway construction project in Cheonan, South Korea.

At least two people died and five were injured on Tuesday after a collapse at a highway construction site in the South Korean city of Cheonan, fire authorities said. The accident took place at 9:49 a.