Iranian Revolutionary Guards inspect the site of a passenger plane crash near the capital Tehran, Iran, Sunday, Aug. 10, 2014. An Iranian passenger plane crashed Sunday while taking off from an airport near the capital, Tehran, killing tens of people onboard, state media reported.

Vahid Salemi / AP

Iranian Revolutionary Guards inspect the site of a passenger plane crash near the capital Tehran, Iran, Sunday, Aug. 10, 2014. An Iranian passenger plane crashed Sunday while taking off from an airport near the capital, Tehran, killing tens of people onboard, state media reported.