A lion at Ghana's Accra Zoo mauled a man to death after he entered its enclosure, the government said in a statement.
A security official on routine patrol noticed a middle-aged man had climbed over the tall mesh fence enclosing a lion, a lioness and two cubs around noon on Sunday (August 28).
His motivation has yet to be determined.
"One of our assistant managers on his normal tour of the zoo around the enclosure where we have the lions notice that someone has entered the enclosure, male, and was being held by the neck by the male lion," said the head of Ghana's Forestry Commission, John Allotey, adding that the man had succumbed to his injuries after he was found.
Authorities are investigating the incident.
None of the animals escaped in the process and the enclosure remains secure, the statement said.
Lions are a highlight attraction at Accra Zoo, with reinforced mesh fencing allowing visitors to view the animals up close.