The United States President George W Bush has renewed for one year an asset freeze on terrorist chief Osama bin Laden and his Al-Qaeda network as well as groups like Hezbollah and Islamic Jihad.
In a letter to key US lawmakers explaining the move, Bush cited "grave acts of violence committed by foreign terrorists that disrupt the Middle East peace process."
"Terrorist groups continue to engage in activities that have the purpose or effect of threatening the Middle East peace process and that are hostile to United States interests in the region," he said on Thursday.
"Such actions constitute an unusual and extraordinary threat to the national security, foreign policy, and economy of the United States," said the president.
"For these reasons, I have determined that it is necessary to continue the national emergency declared with respect to foreign terrorists who threaten to disrupt the Middle East peace process and to maintain in force the economic sanctions against them to respond to this threat," said Bush.