A powerful earthquake of magnitude 6.7 killed two people when it struck near major Turkish and Greek tourist destinations in the Agean Sea on Friday, Turkish and Greek officials said.

The quake, which struck at 1:31 a.m. (2231 GMT on Thursday), was located off the southwestern coastal city of Marmaris in the Mugla province, the USGS said. It was close to the Turkish towns of Bodrum and Datca, and the Greek island of Kos in the Dodecanese Islands archipelago, all of which are major tourist destinations.

George Kyritsis, the mayor of Kos, told Reuters that at least two people were killed in the Greek island and several were injured by the quake.