Oetzi, the 5,000-year old man whose frozen body was discovered in a glacier in the Alps in 1991, may have been attacked not once but twice in his final few days, German researchers said on Wednesday.

It was known that Oetzi, the oldest ice mummy ever found, was shot in the back with an arrow but scientists at Munich's LMU university have now concluded that he may have survived this, if only for a few minutes or hours at most.

And in addition to his being whacked with a blunt object just before Oetzi's 46-year existence in the Neolithic Age ended, he also sustained a nasty gash in his hand several days earlier, the LMU said.

"We are now able to make the first assertions as to the age and chronology of the injuries," said Professor Andreas Nerlich, who led the study. "It is now clear that Oetzi endured at least two events resulting in injury in his last days, which may imply two separate attacks."

The new research, done together with the Institute for Pathology in Bolzano, Italy, is also giving science critical new information about life more than five millennia ago, not least from his equipment, the LMU said