New Delhi, Jan. 7 -- Aldrich Ames, a former Central Intelligence Agency (CIA) officer and an infamous double agent, died on Monday at the age of 84 in a federal prison in the US.

Arrested in 1994 for betraying his nation, Ames was awarded a life sentence without the possibility of parole. He died in the Federal Correctional Institution in Cumberland, Maryland, the Federal Bureau of Prisons said.

Here are some intriguing facts from the life of the double agent.

Ames was likely the highest-paid spy in history. As Moscow's mole inside the CIA, Ames was responsible for selling dozens, perhaps even hundreds, of CIA operational plans to the KGB.

For his services, Moscow paid Ames $2.7 million, as per The New York Times. Ames was also promis...