A mainland man is suspected of having hanged himself after allegedly killing his wife in a flat in Toi San district, the Judiciary Police (PJ) said in a statement on Friday.
The statement identified the two deceased as a 45-year-old male mainlander surnamed Peng and a 69-year-old local woman surnamed Wu.
Local Chinese media reports note that the two met a few years ago and got married. Later, Peng moved to Macau to take care of Wu as she had reduced mobility.