The first plane disappeared from radar at 10:56 p.m. (2:56 p.m. ET), a ministry spokeswoman said.
The Tupolev-134 had taken off from Moscow's Domodedovo Airport and was en route to Volgograd, in southern Russia.
The second plane, a Tupolev-154, disappeared at 11 p.m. (3 p.m. ET) after having taken off from the same airport en route to Sochi in southern Russia, Ria Novosti reported.
Eno_ wrote: "Same airport. Night shift. One bomber, with access to luggage of both planes. That's what it'll be."
...and one timer that was set 6 minutes fast.
ERM, 4 minutes. :)