An explosion has left scores dead in a municipal culture center in the southeastern province of Şanlıurfa’s Suruç district.

At leas 31 people were killed, broadcaster Habertürk reported, adding that 45 had been hospitalized.

There is speculation that the blast was caused by a suicide bomber from the Islamic State of Iraq and the Levant (ISIL).

At least 300 members of the Federation of Socialist Youth Associations (SGDF) were staying at the Amara Culture Center as part of a summer expedition to help rebuild Kobane, which lies directly across the border from Suruç.

The culture center, which is run by the Suruç Municipality under the control of the Peoples’ Democratic Party (HDP), frequently hosts visiting journalists and volunteers who work with refugees from Kobane.