Police were alerted to an unknown floating object in the sea near Punggol Jetty in the wee hours of May 24.
The object is believed to be animal remains, investigations revealed.
The stomp contributor, a fisherman, had been at the scene when police discovered the object.
A spokesperson for the Police said:
"Police were informed about an unknown object found floating in the sea near Punggol Jetty on 24 May at about 1.11am.
"Preliminary investigations revealed that the unknown object is believed to be animal remains.
"Police investigations are ongoing."
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