Vessel operator of 'Conception' dive boat suspends all operations

SANTA BARBARA, Calif. - The owner of a scuba diving boat company announced Tuesday a voluntary indefinite suspension of its fleet in the wake of a boat fire off the Southern California coast that killed 34 people.

Truth Aquatics Inc. issued a statement on Instagram: 

U.S. authorities began conducting a criminal investigation after 34 people were killed in the fiery boat disaster on Labor Day weekend off Santa Cruz Island. 

Investigators concluded their examination of the vessel Friday in Port Hueneme, a naval base northwest of Los Angeles, without determining the blaze’s cause. However, pieces of the boat have been sent to labs for additional testing as officials pore through hundreds of documents seized from Truth Aquatics’ office in Santa Barbara.

RELATED: Criminal probe underway in fiery 'Conception' boat disaster off Santa Cruz Island

Truth Aquatics, founded in 1974, operates its fleet in Santa Barbara, according to the company website. 'Conception,' was one in a trio of dive boats which included 'Vision,' and 'Truth.' 

The Associated Press contributed to this report.