Singapore's anti-narcotics agency on Friday announced the seizure of nearly 18 kg (634 oz) of heroin in a car arriving from neighbouring Malaysia, in what local media said was the biggest haul of its kind in the city-state in two decades.
Singapore has some of the world's toughest penalties for drug trafficking, including execution by hanging.
The Central Narcotics Bureau (CNB) arrested three Malaysian men aged between 23 and 28 following Wednesday's search of the vehicle, which uncovered 17.7 kg of heroin, 261 grammes of crystal methamphetamine and two grammes of ecstasy pills.