FACTBOX: Where the U.S. candidates stand on Guantanamo detainees

(Reuters) - Republican presidential candidate John McCain and Democratic presidential candidate Barack Obama have pledged to close the military prison at Guantanamo Bay in Cuba, which holds terrorism suspects.

Here is a summary of what they have said on the issue.

ARIZONA SEN. JOHN MCCAIN

- Has called for closing the facility and moving prisoners to the U.S. military prison at Fort Leavenworth, Kansas.

- In 2006, McCain supported the Military Commissions Act signed into law by President George W. Bush. The legislation provides military trials for some of the detainees and allowed use of evidence obtained through torture.

ILLINOIS SEN. BARACK OBAMA

- Also supports shutting down Guantanamo.

- Says U.S. civilian courts and the traditional military courts martial system can handle detainee trials.

- Opposed the Military Commissions Act and says he will adhere to the Geneva Conventions, which bans the use of torture on war prisoners.

(Compiled by Donna Smith; Editing by David Alexander)