Going underground! Couple fall through sink hole that suddenly appeared in South Korea

The man and woman had just stepped off a bus (left) at a transport hub in Seoul, South Korea when the ground beneath their feet gave way (centre). CCTV then shows the unidentified pair disappearing from view after being swallowed up by the sink hole. Stunned onlookers can be seen rushing over and peering down into the huge hole in the pavement.