The flight data recorder of the Russian military airliner which crashed in the Black Sea on Sunday has been found, Russian officials say.
It is the first “black box” to be found from the Tu-154 jet, which came down with the loss of all 92 passengers and crew.
The plane crashed soon after take-off from an airport near the city of Sochi.
It was carrying artistes due to give a concert for Russian troops in Syria, along with journalists and military.
The search for victims’ bodies is continuing, with one unofficial report on Tuesday saying the remains of 16 people had been found so far.
The plane disappeared from radar two minutes after taking off from Sochi’s Adler airport at 05:25 (02:25 GMT) on Sunday, heading for Latakia in Syria, the defence ministry said.
The flight had originated in Moscow and landed in Sochi for refuelling.
It was carrying 64 members of the famed Alexandrov military music ensemble, as well as one of Russia’s best-known humanitarian figures, Yelizaveta Glinka, known as Dr Liza, executive director of the Fair Aid charity.
The Alexandrov Ensemble had been scheduled to perform a New Year’s concert at Russia’s Hmeimim air base near Latakia.
Russia has been carrying out air strikes in support of Syrian government forces who are battling rebels opposed to Syrian President Bashar al-Assad.