Two people have died and another two are seriously injured after a bus and truck crash caused a huge fire in a South Korean motorway tunnel.
At least 20 others have also suffered smoke inhalation in the blaze in a noise-barrier tunnel along an expressway in Gwacheon, just south of Seoul.
Huge plumes of black smoke and bright orange flames can be seen in footage from the scene - with 140 firefighters dispatched.
Other photos show responders huddled in the tunnel with smoke up ahead, as motorists gather behind.
It's understood the collision happened outside the tunnel and the fire spread.
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Emergency crews scrambled to the Second Gyeongin Expressway that connects the western port city of Incheon to Seongnam City at 1.49pm local time on Thursday.
Around 50 fire trucks and helicopters have been sent out.
Firefighters are still battling to get the blaze under control and authorities have said the death toll may rise.
More than 200 people are reported to have called the emergency services.
The flames are said to have spread quickly from the truck.
Footage shows construction workers still at work on a road below the tunnel, with the route remaining open.
The Gwacheon Fire Station said: “We are responding by mobilising 140 personnel in 55 command vehicles.”
The fire service is reported to have begun a second stage response at 2.22pm.
