Russian Nikita Salamatov, 26, and his 25-year-old Ukrainian wife Anastasia Dudnikova were attacked at the helipad in a park on Phra Tamnak hill in Chon Buri province about 1am. The man was bleeding from a head wound and his wife had a cut inside her mouth when authorities arrived.
Police found two glasses, a broken wine bottle and a flower vase at the scene.