Some 83 tourists were hospitalized Wednesday night due to an outbreak of food poisoning in the seaside city of Bodrum, about 790 km south of Turkey's Istanbul, the semi-official Anatolia News Agency reported Thursday.
A provincial health director said that the tourists had been diagnosed with nausea and heavy stomach aches.
Officials from Food, Agriculture and Animal Breeding ministry took samples of the food and drinks that the tourists might have consumed.
Bodrum District Gov. Mehmet Godekmerdan said that they were conducting an investigation at the tourists' hotel.
"We sent the samples to the laboratory and we will announce the results tomorrow," he said.
Bodrum is a port city in Mugla Province in the southwestern Aegean Region of Turkey.