Man charged with murder after stabbing couple in Sydney restaurant

A 44-year-old man has been caught and charged with murder as well as attempted murder after stabbing a woman and her date at a Korean restaurant in Sydney on Wednesday night.

The 38-year-old woman, who is believed to be the ex-wife of the suspect, suffered stab wounds to the chest and arm during the attack but her date, a 53-year-old man, died at the scene from wounds to the neck and throat.

Diners fled the scene while the event was occurring at about 9.30pm on Wednesday.

The alleged attacker, who is a Filipino man in Australia on a visa, was apprehended by police 15 minutes later with their Tasers drawn in the diner.

He was questioned at Hornsby police station on Thursday morning.

The woman was taken to Royal North Shore Hospital where she underwent surgery for chest stab wounds, which punctured her sternum.

Police say that jealousy could be the motive behind the frantic stabbing, with the once married suspect and woman having separated in November, Fairfax Media reported.

According to Detective Acting Superintendent Damian Henry, the police are yet to confirm the weapon used, but said a number of items had been taken from the scene for forensic inspection.