QUITO, Dec 9 (Reuters) - An international tribunal has ruled that Ecuador must pay nearly $221 million in a long-running investment arbitration case, the South American nation's procurator said in a statement late on Monday.

• Chevron CVX.N had brought the case against Ecuador under a bilateral investment treaty, arguing that a $9.5 billion judgment against the U.S. oil giant by an Ecuadorean court for alleged pollution in the Amazon was fraudulent.

• An international tribunal sided with Chevron, though the payout is much smaller than the $3.1 billion Chevron had been seeking.

• The tribunal accepted Ecuador's defense that Chevron's damage claims were "exaggerated and unfounded," the procurator said in a statement.

(Reporting by Alexandra Valencia; Editing by Daina Beth Solomon)

((Kylie.Madry@thomsonreuters.com;))