Celtic beat Besiktas 3-2 for first Europa League win this season
Duran's two goals off the bench gave Celtic the win, leaving Besiktas with their first defeat in four matches.
Celtic came from behind to beat Besiktas 3-2 at home on Thursday, Turkey's state-run news agency Anadolu Agency reported.
Substitute Camilo Duran scored twice in the second half, and the result gave Celtic their first points in the competition this season.
Celtic had taken no points from their opening three fixtures, while Besiktas had collected seven from their first three games.
The first half ended goalless, with Benjamin Nygren missing an early chance for Celtic and a long-range effort by Leandro Trossard forcing goalkeeper Sam Johnstone to push the ball onto the crossbar.
Besiktas went ahead in the 54th minute, when Junior Olaitan scored on the rebound after Johnstone saved his penalty.
The spot kick had been awarded after Jordan Lotomba fouled Ernest Poku inside the area.
Substitute Callum Osmand levelled in the 62nd minute with a low shot into the corner, his first touch after coming on.
Duran put Celtic back in front in the 78th minute, finishing into an empty net after rounding goalkeeper Alexander Nubel.
Besiktas captain Orkun Kokcu, back from injury, equalized again in the 85th minute with a long-range strike.
Two minutes later, Duran struck once more after Kieran Tierney played a long ball into the box, completing his brace.
The defeat ended Besiktas's unbeaten start and left them on seven points, while Celtic recorded their first three points of the campaign.