A soldier opens fire in a military camp and a shopping center in Nakhon Ratchasima, Thailand, killing 29 people and injuring 58 others before being shot dead by police the next day. It is considered the deadliest mass shooting in the country's history.
Thai Prime Minister Prayuth Chan-ocha orders officials to improve aviation safety standards after the U.S. Federal Aviation Administration (FAA) downgraded Thailand's safety ratings. The lower rating is for failure to tackle commercial aviation standards shortcomings found in an audit this year. The European Aviation Safety Agency is due to announce the results of its own audit later in December.