FILE PHOTO: A view of a Condor airlines Airbus A320-212 empennage as it takes off on the day its travel firm parent company Thomas Cook collapsed, at Jerez de la Frontera Airport, Spain September 23, 2019. REUTERS/Jon Nazca

WARSAW (Reuters) - Around 3,600 clients of Thomas Cook’s Polish unit Neckermann Polska remain outside Poland, regional authorities said on Wednesday after the local travel agency announced insolvency.

“The biggest group of tourists remains in the Mediterranean Basin, we have the biggest problems in Majorca, Turkey and Tunisia,” Izabela Stelmanska, director of the department for culture, promotion and tourism for the Mazowieckie region told a news conference.