ROME－A drunken driver speeding on a mountain road plowed into a group of young German tourists in northern Italy on Sunday, killing six people and injuring 11 others, Italian authorities said.

The deadly crash occurred in the Lutago village of Valle Aurina, northeast of Bolzano in the Alto Adige region, shortly after 1 am as the Germans gathered near their tour bus. They were between the ages of 20 and 25.

The largely German-speaking autonomous region of northern Italy, with its ski resorts in the Dolomites and quaint villages around Bolzano, is popular with German tourists.

"The new year begins with a terrible tragedy," said the regional president of Alto Adige, Arno Kompatscher. "We are left stunned."

The driver of the car had a high blood alcohol content and was driving particularly fast, a Carabineri police official in Brunico said on condition of anonymity because he wasn't authorized to give his name.

He said police had concluded that the crash wasn't an act of terrorism.

Italian news reports said the driver's blood alcohol level was nearly four times the legal limit, and that he slammed into the tourists as they were getting off their bus and returning home after an evening out.

"They were torn from their lives by the actions of someone speeding under the influence of alcohol," said Armin Laschet, the governor of North Rhine-Westphalia, the German state that is home to most of the victims.

The Lutago volunteer fire service said on Facebook that six people were killed at the scene. The 11 injured, four of whom were in critical condition, were taken to several regional hospitals, including two who were airlifted to a hospital in Innsbruck, Austria, said Bolzano Carabinieri Commander Alessandro Coassin.

Coassin said the driver, identified by Italian media as a 28-year-old man from the nearby town of Chienes, was arrested on suspicion of highway manslaughter and injury and was being treated at the hospital in Brunico.

Most of the victims hailed from western Germany, though two of the injured were Italian, officials said.

"These young people wanted to spend a good time together and were torn out of their lives or seriously injured from one second to the next," Laschet said.

Speaking to reporters in Germany, Laschet said the victims came from various cities.

"It was a single group ... but not everyone knew each other," he said.