The head of Libya's armed forces and four other passengers died on Tuesday when their business jet crashed shortly after taking off from Ankara, officials in Turkiye's capital and Tripoli said.
The wreckage of their Falcon 50 aircraft was located by Turkish security personnel in the Haymana district near Ankara, Turkiye Interior Minister Ali Yerlikaya said.
Libya's Prime Minister Abdulhamid Dbeibah said on his Facebook page: "It is with deep sadness and great sorrow that we learnt of the death of the Libyan army's chief of general staff, Lieutenant General Mohammed al-Haddad."
Al-Haddad earlier Tuesday held talks in Ankara with his Turkish counterpart, Selcuk Bayraktaroglu, and was returning to Tripoli.
Yerlikaya said on X that al-Haddad's jet took off from Ankara's Esenboga airport at 1710 GMT, and "contact was lost" 42 minutes later.
The aircraft issued an emergency landing notification near Haymana — 74 kilometres (45 miles) from Ankara — but contact could not be reestablished, the minister said.
Turkiye Justice Minister Yilmaz Tunc said the Ankara chief prosecutor's office has launched an investigation into the incident.
Several Turkiye media outlets broadcast images showing the sky lit up by an explosion not far from the location where the aircraft sent a signal.
Ankara has close ties with the UN-backed government in Tripoli, to which it provides economic and military support.
Walid Ellafi, Libyan minister of state for communication and political affairs, told local television channel Libya al-Ahrar that the Turkiye government informed his government of the incident.
"We received a call from the Turkish authorities immediately after the incident, reporting that contact with the aircraft had been lost," the minister said.
"All contact with the aircraft was lost about half an hour after takeoff from Ankara airport due to a technical problem," he said.
"We are awaiting the conclusions of the Turkish investigation, and it appears that the plane crashed."
The minister said the others on the aircraft were al-Haddad's advisor, Mohammed Al-Assawi, as well as Major General Al-Fitouri Ghraibil, Major General Mohammed Jumaa, and their escort, Mohammed Al-Mahjoub.
Meanwhile, the Turkish authorities have found voice recorder and black box of the crashed plane.
The aircraft had suffered from an electrical failure minutes after it took off but then contact was lost, said Turkish officials.
Interior Minister Ali Yerlikaya said voice recorder and the flight data recorder (black box) were recovered from the plane, speaking to reporters at the site.
"The examination and evaluation processes of these devices have been initiated by the relevant authorities," he said.
Yerlikaya said the bodies were still at the wreckage area, adding that a 22-member Libyan delegation had also arrived in Ankara.