An explosion outside a chamber of commerce building in Turkey’s southern resort city of Antalya wounded several people today.

The cause of the blast a few kilometers from the airport was not immediately clear, Reuters reported.

The city’s mayor said there were no life-threatening injuries and the blast may have been an accident.

“It could be an explosion caused by an accident. Initial information suggests there are no life-threatening (injuries),” Antalya mayor Menderes Turel told broadcaster CNN Turk.

Two rockets hit a commercial facility near a resort town in the province in August, but caused no casualties.

Turkey is on high alert after repeated bombings blamed on Islamic State and Kurdish militants this year.

Authorities in the capital Ankara banned public meetings this month for fear of further attacks, and the US State Department has urged US citizens to carefully consider the need to travel to Turkey.