Israel has been pressured and adviced to conduct an independent investigation, but the Israeli has refused, claiming the report is nothing but biased. The report has already been sent to the Security Council. The United Nations has already offered Israel two options: either they start an investigation during the following six months or Israel will have to face international prosecution.
More information:
http://www.timesonline.co.uk/tol/news/world/middle_east/article6891249.ece
http://news.bbc.co.uk/2/hi/middle_east/8326153.stm
http://news.bbc.co.uk/2/hi/middle_east/8322584.stm
http://online.wsj.com/article/SB10001424052748704500604574480932924540724.html
http://www.oem.com.mx/elsoldemexico/notas/n1370995.htm