Turkey's President Recep Tayyip Erdogan was due in Doha late Tuesday as Ankara sought to acquire some of Qatar's used Eurofighter Typhoon jets, a Turkish security source told AFP.

Erdogan flew in from Kuwait and was expected to meet Qatar's Emir Sheikh Tamim bin Hamad Al Thani on Wednesday, according to the Turkish leader's office.

"Turkey has been trying to negotiate to acquire some of Qatar's used Eurofighters," the source told AFP, speaking on condition of anonymity because they were not authorised to talk to journalists.

"In exchange, Turkey has offered access to its new-generation fighter jet, the Kaan, as part of a potential technology transfer arrangement."

So far "no concrete progress" had been made with the negotiations still ongoing, the source said.

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