Police found the bodies of two men, believed to be a Chinese father-and-son pair, in two separate places in the Kovan area on Wednesday.
The authorities received a call about the incident at around 3.40pm, and are investigating if the deaths are indeed related.
The body of a man, believed to be in his 40s, was found outside Kovan train station.
It was the end point of a trail of blood which started from around 14J Hillside Drive, where the other body of a man in his 70s was found.
Those in the area told Channel NewsAsia that a car was supposedly involved in the incident, and that the man in his 40s was apparently dragged by the vehicle.
"I saw the Traffic Police blocking the road...they said I can't enter this way...I have to make another round. My friend then told me that there was an accident along Hillside Drive...I heard there's a commotion, then a car was reversing," said Muhammad Hafiz, a volunteer at a mosque in Kovan.
Police are appealing for information from witnesses who may have seen a silver Toyota Camry at the incident scene with the number plate SGM14J.
Source: Channel News Asia