#Guinness - An heir to the Guinness dynasty fortune is under investigation after an incident in which his boat sank in Lake Como in Italy.

Motorboat & Yachting reports that Edward Guinness is believed to have been at the helm of the boat when it hit a rock wall and sank close to dock in the early hours of Sunday 3 May, forcing all on board to swim to safety.

Guinness, a London-based fund manager and descendant of the family that established the famous St James's Gate brewery, was among five of the 10 people on board who were hospitalised with "serious" injuries.

According to the Guardian, the boat was carrying a group of British and Spanish tourists near the Guinness family residence at Villa Lucertola.

Prosecutor Pasquale Addesso said the investigation will look into alcohol played a role in the accident. The Guardian has more HERE.