KYIV, Aug 28 - Moody's Investors Service has upgraded the government of Ukraine's local and foreign currency issuer and senior unsecured ratings to Caa2 from Caa3, and changed the rating outlook to positive from stable, reads a report on the website of the rating agency.

"Consequently, Moody's has upgraded to Caa2 from Caa3 the ratings of Ukraine's nine senior unsecured eurobonds issued in the context of the government's debt exchange operation in November 2015," it states.