SEOUL, South Korea. JUNE 9 (AP/UNB) - South Korean company officials have left for Peru to help look for a helicopter that went missing with their fellow workers aboard.

The chopper disappeared Wednesday in Peru's highlands with eight South Koreans and three Europeans aboard. The South Korean embassy in Lima says its nationals were exploring a potential hydroelectric project near Mazuco.

Seoul's state-run Korea Water Resources Corporation said in a statement on its website that its vice president left Friday for Peru to aid the search. A Samsung C&T official said his company also sent a team of workers to Lima on Friday.

A Foreign Ministry official says Seoul has no plans to send its own rescue workers yet.

The two officials declined to be named citing policy.