Chinese mariner Guo Chuan sets sail of his trimaran in San Francisco, US on Oct 17, 2016, aiming to set a new solo non-stop trans-Pacific sailing world record from San Francisco to Shanghai. [Photo/IC]

BEIJING - Chinese mariner Guo Chuan trying to sail on a solo trans-Pacific voyage was missing off Hawaii, his support team said on Wednesday.

All attempts to contact the vessel had failed and a rescue organization in Honolulu has sent a searching aircraft, which found the mainsail in water, broken off Guo's trimaran, but didn't see the sailor on the deck.