A UTair ATR-72 aircraft crashed Monday morning shortly after taking off from Tyumen in Siberia on its way to Surgut with 39 passengers and four crew members. The BBC has reported that 31 of the 43 people onboard were killed.

According to the Itar-Tass news agency, the crew of two pilots and two flight attendants were among those who died.

Flight 120 is reported to have crashed at around 5:30 a.m. local time. UTair said on its website that the pilot had been trying to make an emergency landing when the aircraft crashed.

According to an ATR statement, the aircraft, registered under VP-BYZ, was MSN 332, initially delivered from the production line in October 1992. UTair had been operating this aircraft since August 2008. 

“The Russian Interstate Aviation Committee (IAC) will lead the investigation and will be the official source of information. According to international regulations, ATR will advise the French Bureau d'Enquêtes et Analyses (BEA), safety investigation authority representing the state of the aircraft manufacturer. At this time, the circumstances of the accident are still to be determined. ATR expresses its deepest sympathy to the families, friends and loved ones affected by the accident,” ATR said in a statement.

The ATR 72-201 is a 68- to 74-seat twin turboprop engine aircraft.