English Premier League club Newcastle United said they were "praying for some positive news" over the fate of its former player Christian Atsu.
The Ghana international winger plays for Turkish side Hatayspor and is reportedly among those trapped under the rubble in Kahramanmaras.
He spent several years with Newcastle and Chelsea before signing with Hatayspor last summer.
The club's sporting director Taner Savut, was also reportedly missing
Domestic football matches in Turkey have been called off following Monday's quake.
