Chiang Rai police colonel Popkorn Khuncharoensuk told CNN that the two ships were raided by a joint task force of army , marine police , local police and paramilitary following the attack , and found almost one million amphetamines on the vessels . Two Chinese ships were attacked on the Mekong River on December 9 . China 's Foreign Ministry says at least 20 sailors were killed in the attack . China says it 's working with Thai authorities to hunt down the pirates .
Two Chinese ships were attacked on the Mekong River on December 9 . China 's Foreign Ministry says at least 20 sailors were killed in the attack . China says it 's working with Thai authorities to hunt down the pirates .