unexplained

Dorset Police, who previously said carbon monoxide poisoning was a possible cause, said the deaths were still being treated as "unexplained".

Doctors later determined he had suffered a brain injury that was "unexplained and non-accidental", leading to the arrest of Spreadbury.

Their sudden and unexplained disappearance has long vexed aviation experts and helped enshrine Earhart’s place in American culture.

We're here because of seemingly unexplained events.

Forensics officers have been in the area since the unexplained death of the 58-year-old man on 17 October.