Updated

The following are estimated times of developments in Tuesday's Russian air crashes:

Tuesday, Aug. 24

9:35 p.m. — Tu-154 jet, carrying 46 passengers, takes off from Moscow's Domodedovo airport (search) for the Black Sea resort of Sochi (search).

10:15 p.m. — Tu-134 jet, carrying 43 passengers, takes off from Moscow's Domodedovo airport for the southern Russian city of Volgograd (search).

10:55 p.m. — Tu-154 jet activates a distress signal indicating that the plane might have been hijacked.

10:56 p.m. — Tu-134 jet disappears from radar screens and crashes.

10:59 p.m. — Tu-154 crashes in Rostov region.

Wednesday, Aug. 25

3:00 a.m. — Rescuers find the wreckage of Tu-134 jet in the Tula region, about 125 miles south of Moscow.

8:41 a.m. — Rescuers discover wreckage of Tu-154 jet some 600 miles south of Moscow.

Early morning: Emergency Situations Ministry declares no survivors in either crash.

2:40 p.m. — Authorities believe they have recovered bodies of all 43 people aboard Tu-134. Recovery of bodies from Tu-154 crash continues.