SINGAPORE - Two Thai nationals face the death penalty in Singapore after being arrested over the weekend for allegedly trafficking methamphetamine pills, the Central Narcotics Bureau (CNB) said on Monday.

The 9,938 methamphetamine pills, known also as 'yaba', seized from the suspects has an estimated street value of S$99,380 Singapore dollars and is the largest seizure of the drug this year.

Acting on a tip, CNB officials mounted a raid at a food market on Sunday evening. The drugs were found hidden in three biscuit boxes in a plastic bag held by the male suspect, police said.

The man, a 34-year-old construction worker, and his 51-year-old female compatriot who flew in from Thailand earlier in the day, both face death by hanging if convicted of the trafficking charges.

The death penalty in Singapore was made mandatory for drug traffickers in 1975.