The body of an elderly man was discovered by Singapore Civil Defence Force (SCDF) firefighters after they put out a fire at a Marine Crescent flat on Saturday morning.
The victim, who was in his 60s, was believed to have been partially blind and lived with his wife in the five-room flat at Block 27.
The SCDF received a call about the fire at 9.30am and arrived at the scene in three minutes, said a spokesman.
By then, the fire was already raging and eyewitnesses said they saw thick, black smoke billowing out of the windows of the 10th-floor unit.
Firefighters had to force their way into the flat to reach the fire, which had spread to the living room and two bedrooms.
Two fire engines, two Red Rhinos, an ambulance and three other vehicles were deployed to the scene.
It took the four teams of six firefighters about 45 minutes to put out the blaze.
The Sunday Times understands that the victim had a son, a daughter and three grandchildren, who visited the elderly couple regularly.
The last time they were at the flat was last Friday night.
The victim's wife was out when the fire broke out.