CCTV captures the moment two people disappear down a sink hole as they walk down the street.
Two people escaped with minor injuries after being swallowed by a sink hole that opened as they walked along a pavement in South Korea.
CCTV captured the moment the pedestrians vanished down the hole, which was reportedly 10-feet deep.
The pair had to be rescued by firemen and were taken to hospital.
The sink hole appeared next to a construction site where a 39-storey apparent block is being built.
Seoul Metropolitan City and the Korean Geotechnical Society (KGS) are investigating how it happened.
KGS official Cho Seong-ha said: “Looking at the actual sink hole site, the key point is that water is coming out of the retaining wall.
“However, it is still not known whether this was the immediate cause of the ground sinking.
“We are planning to analyse the possibility through investigation. We are also planning to figure out other causes for the sinking by looking at various construction records and by investigating the site.”