Palestinian authorities said a grave site discovered at the Nasser hospital, the main medical facility in central Gaza, contained nearly 400 bodies
"I'm surprised. It's embarrassing for Sweden to reopen the investigation," Per E Samuelson told Swedish TV.
"He has always wanted to help solve this Swedish issue, his big predicament in life is that he risks being extradited to the United States because of his journalistic work."
Sweden's state prosecutor said on Monday she would reopen a rape investigation involving Assange and that circumstances now existed to seek his extradition from Britain.