Two pilots of the L-39 military aircraft have died in a crash in Khmelnytsky region near the town of Starokostiantyniv, head of the press service of the Air Force command Roman Yurchylo told Interfax-Ukraine.

"Communication with the vessel during its training flight was lost at 12:20. The L-39 aircraft crashed in the vicinity of Starokostiantyniv. Two pilots were killed," he told the agency on Friday.

Rescue services and law-enforcement agencies are working at the site, the Air Force command wrote on its Facebook page.

The reasons for the accident are being established.

The L-39 is a two-seat trainer jet.