Dreaded terrorist organization Al Qaeda has acknowledged that its founder and leader Osama bin Laden is dead, putting an end of conspiracy theories.

The terrorist outfit, infamous for the 9/11 and other attacks, has confirmed the death of bin laden in Islamist websites. It said it will release a voice recording of bin Laden made a week before his death. It could be bin Laden's final message, a rallying cry for the Al Qaeda and other terrorist outfits to carry on Jihads against the U.S. and its allies.

Al Qaeda has also vowed revenge upon the U.S. and its allies and warned that bin Laden's blood will not be wasted. The outfit said his death will become a curse upon the U.S.

[Osama's blood] will remain, with permission from Allah, the Almighty, a curse that chases the Americans and their agents, and goes after them inside and outside their countries, it warned.

Their happiness will turn into sorrow, and their blood will be mixed with their tears. We call upon our Muslim people in Pakistan, on whose land Sheikh Osama was killed, to rise up and revolt.

The confirmation puts an end to the controversy whether bin Laden is really dead. It also quells the growing voices of conspiracy theorists.

Ever since the U.S. President Barack Obama announced on Sunday that the U.S. special ops forces have killed Osama bin Laden and his body was buried at sea, conspiracy theories broke out that it a hoax.

While some wondered that it was a media stunt meant to boost Obama's popularity ratings ahead of 2012 presidential elections, others even thought that bin Laden had died (or was killed) years back that the news was kept a secret till now.

Some even claim that bin Laden is still alive but captured and confined in a secret military camp in the United States.

Conspiracy theories thrived on the back of fake death photos of bin Laden flooding the Internet.

Voices of conspiracy theorists also grew stronger when the White House decided to keep bin Laden's death photos and videos classified and not release them to the public.