Tas man charged with attempted murder

A Tasmanian man has been charged with the attempted murder of his partner after an alleged domestic incident which ended with the pair being removed from a partially submerged car.

The woman is in hospital with non-life-threatening stab wounds and the 50-year-old man remains in custody, police said on Thursday.

The couple, from Ulverstone in the state's northwest, were the subject of a search by officers overnight and were located at about 2.30am (AEDT) in a Ford Falcon that had been driven into waters near Dunalley at the other end of the island.

The man is due to face court on Friday.

* National domestic violence helpline: 1800 737 732 or 1800RESPECT. In an emergency, call triple-zero.