Bangkok, Thailand (CNN)Authorities in Thailand seized hundreds of kilograms of crystal methamphetamine Tuesday in the largest haul of its type in the country's history.
Thai officials reveal largest ever crystal meth haul
Lt. Gen. Sommai Kongvisaisuk, chief of the Narcotics Suppression Bureau, told CNN a truck containing 788 kilograms (1,740 pounds) of the drug, was detained by military and police in Chiang Rai province near the Mekong Delta.
Around 10 million amphetamine pills were seized during the same operation. The drugs were hidden inside tea bags and packets of fertilizer and Kongvisaisuk said the "14K" criminal syndicate was behind the banned substances.
In total, the amount of drugs seized on Monday had a street value of $55 million, police said.
The haul follows a series of high-profile raids targeting the drug trade in Thailand, which saw thousands of kilograms of crystal meth, speed and marijuana seized between March 25 and April 1.
But despite the large seizures, the country's drug problem was only growing more serious, Jeremy Douglas, Southeast Asia regional representative for the United Nations Office on Drugs and Crime, told CNN.
"We don't see this ending ... the region has to work together to counter these flows or we will continue to see these seizures and we will continue to see growth in meth production and demand," he said.
Between 2016 and 2017, the amount of crystal methamphetamine seized by Thailand's Narcotics Suppression Bureau grew by more than five times, from 630 kilograms to 4,160 kilograms (1,390 to 9,170 pounds).
At a separate press conference Tuesday, Thai authorities displayed large quantities of amphetamines, marijuana and crystal meth that had been seized over the the past two weeks.
"For over one year, we have seized a large quantity of drugs and it has disrupted supply," Kongvisaisuk told reporters. "However, drug production has not reduced and it has never been stopped."
Eleven suspects were tak