SINGAPORE - Two people have been arrested in connection to their flatmate's death in a HDB flat in Woodlands.

The police had found a 27-year-old Singaporean woman dead on Monday morning in a third-floor flat in Block 878 in Woodlands Avenue 9.

They nabbed her Singaporean flatmates - a 36-year-old man and a 31-year-old woman - later on the same day.

Neighbours said the trio moved in about half a year ago, and had probably rented the flat.

"They kept to themselves," said a neighbour, who wanted to be known only as Melody. "They had friends over sometimes, but they weren't noisy."

Another neighbour said that she and the woman who died both worked in the nearby shopping mall, Causeway Point, and used to run into each other on the bus several times a week.

The neighbour, who wanted to be known only as Ms Xu, said that she often saw bruises on the woman's face and arms.

"I would ask her what happened, and she would tell me that she had fallen down," Ms Xu said. "She would cover them up with a thick layer of powder."