Ahmet Davutoglu said the unarmed plane was not on a secret mission related to Syria, but had mistakenly entered Syrian airspace before the incident.
Syria maintains that it engaged the aircraft in its airspace “according to the laws that govern such situations”.
The Turkish and Syrian navies are still searching for the two crew members.
Ankara has promised its response will be strong, decisive and legitimate once it has ascertained all the circumstances surrounding the incident.
1. F-4 Phantom takes off from Erhac airbase, Turkey, at approximately 10:28 local time (07:28 GMT), on 22 June
2. Syria says the jet enters its airspace at 11:40 (08:40 GMT)
3. Turkish military loses contact with the plane at 11:58 (08:58 GMT), while it is over Hatay province
4. Syria says its air defenses engaged aircraft about 1 km (0.6 miles) from the coast and that it crashed into the sea 10 km (6 miles) west of Om al-Tuyour
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