Pentagon plans to close Guantanamo prison

The Pentagon was expected to submit to Congress on Tuesday President Barack Obama's long-awaited plan for closing the US military prison at Guantanamo, Cuba.

Obama, whose pledge to shut the facility at the US naval base dates back to the start of his presidency in 2009, is seeking to make good on his plan before he leaves office in January.

Pentagon spokesman Captain Jeff Davis said the administration intended to meet Tuesday's deadline for sending Congress a proposal for closing the facility. There are still 91 prisoners detained there.