SINGAPORE - A 63-year-old man was allegedly murdered by a woman in Ang Mo Kio on Sunday morning (Oct 27).

A police spokesman said the 54-year-old suspect, who witnesses say is a large-sized woman about 1.75m tall, is expected to be charged in court on Monday.

The case has been classified as murder.

Police say they were alerted to the case of unnatural death at Block 633 Ang Mo Kio Avenue 6 at 5.46am. The man was pronounced dead by paramedics at the scene, they added.

Preliminary investigations show that the victim and the suspect are known to each other.

When The Straits Times arrived at the scene at 9.30am, the stairs leading up to the unit had been cordoned off. The lift also had a sign saying it was out of order. A police van was parked under the block, with many curious onlookers milling about.

Bloody footprints could also be seen leading out from the flat into the shared corridor.

Neighbours told ST the pair have been living at the third-floor unit for about two years.

They have been seen regularly going to the hawker centre together, sometimes hand in hand. Neighbours said they have been seen pushing a toddler around the estate in a stroller and that they have a daughter who is working.

A 60-year-old resident who wanted to be known only as Mr Chen said he heard repeated "drum-like banging" coming from the unit when he was preparing to go for his run at 5am. He said the banging was so odd he found it difficult to place.

"It was not like the throwing of things or furniture. It was a repeated thudding," he said, showing ST the sound by knocking against a waterpipe with his hands.

He said when he returned from his run at about 9am, he saw the woman being led away in handcuffs at the bottom of the block.

Retiree Ms Chen, who lives on the second floor, said she had never seen the two raise their voice at each other.

The 69-year-old said she was switching off the air-conditioning at 5am when she heard repeated loud banging, saying: "I didn't pay it much mind at first because I thought they were just being louder than usual. Now that I know what has happened, I am quite sad because they were such a loving couple."