Search teams at the site of the Saratov Airlines Antonov An-148 crash outside Moscow have located a second device believed to be one of the flight recorders from the jet.
One recorder was retrieved on 11 February as recovery specialists started combing through the debris from the accident, which covers an area of 30ha.
The Russian emergency situations ministry says the site has been divided into 29 search sectors and that a device was located in the 18th sector.
It adds that the Interstate Aviation Committee, the country's accident investigation authority, is working to confirm its nature and identity – although the ministry says it is "presumably" a flight recorder.
None of the 71 occupants of the An-148 survived after it came down in a field shortly after take-off on a service to Orsk.