Two US Navy SEALs 'investigated over Green Beret strangulation death in Mali'

N avy criminal investigators are reportedly probing whether two Navy SEALs strangled to death an Army Green Beret in Mali.

Staff Sergeant Logan Melgar, 34, was found dead on June 4 in shared embassy housing in Mali's capital Bamako - where he was posted with special operations forces working on training and counterterrorism efforts, it was reported on Sunday.

His superiors quickly suspected "foul play" in the death and agents from the Army’s Criminal Investigation Command spent months investigating the case before handing over to the Naval Criminal Investigative Service last month, officials told the New York Times.

A military medical examiner ruled Melgar's death a homicide by strangulation, the newspaper reported.

"NCIS can confirm we are investigating the death of SSGT Melgar in Mali but beyond that, NCIS does not discuss the details of ongoing investigations," spokesman Ed Buice told AFP.

H e said the agency took over the case from the Army's Criminal Investigation Command on September 25. 

The unidentified Navy SEALs have been placed on administrative leave, the Times said - but no official statement has been released and nobody has been charged in connection with the death.

News of the death  has emerged as America's presence in the region came under the spotlight when four soldiers were killed in an ambush in neighbouring Niger.