A British scientist who vanished while jogging on the island of Ikaria hours before she and her boyfriend were scheduled to leave died instantly after falling from a height, hitting her head in a 20-meter (65-foot) fall, Coroner Nikos Karakoukis said.

The body of Cyprus-based astrophysicist Natalie Christopher, 34, an avid trail runner, was found Aug. 7 after an island-wide hunt by police and teams of volunteers after her boyfriend said she didn’t return from her run two days earlier.

The area has trails along steep cliffs and ravines although she was an experienced mountain runner and no explanation was given as to how she may have fallen or if her vision was blocked by trees or other objects.

Karakoukis, who traveled to the island from Athens, said evidence from an initial assessment of the area where Christopher’s body was found was “consistent with a fall from a height.” Her body was transported to a morgue in Athens.

He said that there was other evidence apart from a single pool of blood beneath her head to back the likely cause of death after her disappearance sparked worries, coming a month after an American scientist was found murdered on the island of Crete after also going out for a run or walk, it was reported.