The security officials' suspicions have been confirmed by an online announcement in which the al-Qaeda group claimed responsibility for the three suicide attacks from yesterday.
The text translated by Associated Press said that "a group of lions have launched a new attack against some dens that were planted in the Muslim land in Amman. After studying and watching the targets, some places
were chosen and they were made by the tyrant of Jordan as a backyard garden for the enemies of the religion, Jews and crusaders, and a filthy place for the traitors of this nation and a safe haven for the infidels' Mukhabarat that run conspiracies against the Muslims and a centre for prostitution".
"Despite the security measures provided by the traitor to protect those dens, the al-Qaeda soldiers were able to reach their targets and carry out the duties, according to the information we have. Details of the attack and people who fulfilled them will be announced later on. Let the tyrant of Jordan know that the protecting walls for the Jews built in Jordan and the backyard camp for the crusaders' army is now in the range of fire of the mujahedeen", the text also said.
According to the Globe and Mail, the authenticity of the document could not be immediately determined.
A security official said several people were rounded up overnight, but would not provide other details.