Vic man missing after night fishing

A search is on for a man missing following an evening fishing trip in an aluminium boat on the Murray River in NSW's far southwest.

Two Victorian men, aged 67 and 71, were travelling east at Wentworth about 8pm on Sunday when the older of the two fell into the water as the tinnie made a sharp turn, police say.

The 67-year-old steering the boat was unable to locate the other man.

NSW police are continuing to search the river, which falls under their jurisdiction, with the assistance of SES volunteers and Victoria Police.