Iranian Troops Enter Azerbaijan In Challenge to Russian Power; U.N. Defeats Gromyko Demand

TEHRAN, December 10--Four columns of government troops began an invasion of Azorbaijan today in what may prove to be a challenge to Russian influence, and unconfirmed reports said Mianeh, 80 miles from the Azerbaijan capital, had been captured in a swift advance.

The attack followed by a few days Iran's notification to the United Nation's Security Council that the Soviet Ambassador in Tehran had given a "friendly admonition" against sending troops into the province on the grounds it might create "disturbances" on Russia's frontler.

There was some concern in government circles that Russia might give indirect aid to the Azerbaijans. For some time government sources have been reporting privately that military technicians, arms and other forms of aid were filtering across the Soviet border into Azerbaijan.

Reports received in official circles, but lacking confirmation at Military Headquarter's said the troops quickly repaired an 80-yard-long bridge blown up by the Azerbaijan militia at the River of the Golden Swimmer and entered rugged Ghaflankooh Pass, main gateway to the rebellious province on Iran's north-western frontier.

Mianeh is five miles beyond the pass, and is the first city of any importance on the main highway and railway route to Tabriz, Azerbaijan capital.

Gen. Razmara, Chief of the General Staff who announced the start of the military movement, said first casualties were light and that some Azerbaijans surrendered. Some machine guns and small arms were captured, he added.