Seven people go missing after helicopter crash in South Korea

There's no sign of survivors after one helicopter crashed in SOuth Korea with seven people on board.

According to local media reports, seven people were on board the aircraft when it went down late Thursday near the disputed islets known as Dokdo in South Korea and Takeshima in Japan.

Media reports citing fire officials said the helicopter had just picked up an injured sailor when it crashed shortly after taking off from Dokdo for still unknown reasons.

The Yonhap news agency said that about 14 hours after the chopper went down, it had

been spotted by rescue vessels. A salvage ship and a submarine were also sent to the site to aid in the recovery effort.