Mail Online is reporting that Osama Bin Laden's son has denounced the Al Qaeda leader's killing as 'criminal' and said he reserves the right to take legal action against America.
The statement apparently made by Omar Bin Laden has appeared on an Islamist website. He further said that he wants answers within 30 days.
Omar, who is Bin Laden's fourth eldest son, claimed he and the Al Qaeda chief's other children are reserving the right to take legal action in the U.S. and internationally to 'determine the true fate of our vanished father', said the SITE Intelligence Group, an online monitoring service.
He also branded his father's burial at sea as a 'humiliation' for his family.
There was no independent confirmation of the authenticity of the letter. It was published on the website of Islamist ideologue Abu Walid al-Masri.
Several specialists on militant propaganda said the text appeared genuine.