(CNN) -- CNN has learned from federal law enforcement sources the names used by 18 hijackers who authorities believe commandeered four commercial airliners on Tuesday in a coordinated attack on two renowned symbols of American power.
The suspected hijackers aboard American Airlines Flight 11, which hit the north tower of the World Trade Center, were Walid Al Shehri, Wail Alsheri aka Waleed Alsheri, Mohammad Atta, Aabdul Alomari and Satam Sugami.
Aboard United Airlines Flight 175, which hit the south tower of the World Trade Center, the suspected hijackers were Marawn Alshehhi, Fayez Ahmed, Mohald Alshehri, Hamza Al Ghamdi and Ahmed Al Ghamdi.
Those believed to be the hijackers aboard American Airlines Flight 77, which hit the Pentagon, were Khalid Almihdhar, Majed Moqued, Nawaf Al Hazmi and Salem Al Hazmi.
The suspected hijackers aboard United Airlines Flight 93, which crashed in rural
Pennsylvania, were Ahmed Al Haznawi, Ahmed Alnami, Ziad Jarrah and Saeed
Spellings are as they appear on federal documents and may vary from other