A spokesman said there were no signs of violence to Mr Ghanem's body, which was in the river that flows through Vienna.
The former prime minister, 69, worked as a consultant for a Vienna-based company. He apparently left his home early on Sunday, police said.
Mr Ghanem defected from Libya as the country was engulfed in the uprising against Col Muammar Gaddafi last year.
At the time, he criticised the bloodshed in Libya, saying that the situation had become "unbearable", making his position untenable.
He served as Libyan prime minister from 2003 to 2006 and then as oil minister until 2011. » | Sunday, April 29, 2012
