BANGKOK (AP) - The Federal Aviation Administration has downgraded the safety rating of Thailand's aviation industry in a move that could hamper operations of Thai airlines worldwide.

BANGKOK (AP) The Federal Aviation Administration has downgraded the safety rating of Thailand's aviation industry in a move that could hamper operations of Thai airlines worldwide.

The U.S. agency's announcement Tuesday comes after the International Civil Aviation Organization flagged significant concerns about Thailand's aviation safety in March.

The FAA says it lowered Thailand's rating to "category 2" which means its civil aviation authority is deficient in one or more critical areas or that the country lacks laws and regulations needed to oversee airlines in line with international standards.

Thai airlines can continue existing services to the United States but will not be allowed to establish new services.

Regulators are in other countries are likely to be influenced by the FAA and ICAO statements.