Lake Maggiore

The boat overturned on Sunday evening between the towns of Sesto Calende and Arona, Italian media say.

Five people were rescued and taken to hospital.

Unconfirmed reports in Italian media say the victims are Italian, Israeli and Russian.

One of the them, a Russian woman, is said to have been the partner of the boat's skipper.

Attilio Fontana, president of the Lombardy region, said the "very serious incident" was due to bad weather.

The boat was 16m (52ft) long and had been hired by tourists, he said on Facebook.

The accident happened on a service transporting passengers from the resort town of Stresa up the nearby Mottarone mountain in the region of Piedmont.

Images from the scene show the wreckage lying in a steep wooded area.

Officials said two survivors, aged five and nine, were taken by helicopter to a Turin hospital.

Alpine rescue officials confirmed in a Sunday evening tweet that the final tally of those involved was 13 dead and two injured, after the death toll steadily rose in the hours after the accident as the wreckage was searched.