Updated

The growing political unrest in Kyrgyzstan has prompted the U.S. military to limit flights at the base it maintains in the Central Asia country.

Because Manas Air Base shares a flight line with Bishkek Airport, all flights in and out of Manas have been halted from 10 p.m. to 8 a.m. local time, a Pentagon spokesman told Fox News.

Manas serves as a critical supply line for the war in Afghanistan, but "this has had no significant impact on our military operations," the spokesman said.

Opposition leaders declared Wednesday they had seized power in Kyrgyzstan, taking control of security headquarters, a state TV channel and other government buildings after clashes between police and protesters left dozens dead.

Fox News' Justin Fishel and The Associated Press contributed to this report.