Her final text contained just a single word, but it haunts Jean Hanlon's (pictured) family to this day. 'Help', the message read.

A woman has been stabbed to death after an argument with a man who is now under police guard.

Police received reports of an altercation between a man and woman in Kassan Gardens, in Endeavour Hills in Melbourne‘s south-east at about 7.30am on Tuesday.

The woman was stabbed and died shortly after. 

Police say the pair are known to each other, with the man in hospital under police guard in a serious condition.

The homicide squad is investigating and detectives are not looking for anyone else.

Anyone with information or CCTV of the incident is urged to contact Crime Stoppers on 1800 333 000.

More to come