UPDATE 4-IAEA says gets info on possible Iran military work
* IAEA report says Iran not addressing military concerns
* Iran envoy says allegations "totally fabricated"
* Plans to start operating second enrichment site by summer
* Report may stoke Western fears of Iran's nuclear aims
(Adds new centrifuges, Iran comment, analyst quote)
By Fredrik Dahl
VIENNA, Feb 25 (Reuters) - The U.N. atomic watchdog has received new information regarding allegations that Iran may be seeking to develop a nuclear-armed missile, the agency said in a report voicing deepening concern about the issue.
The confidential document from the International Atomic Energy Agency (IAEA) signalled growing frustration at what it sees as Iran's lack of cooperation with a long-running investigation into its disputed nuclear programme.
It also underlined Iran's determination to press ahead with sensitive atomic activity despite four rounds of U.N. sanctions since 2006, saying the country had informed the IAEA it would soon start operating a second uranium enrichment plant. Continued...