A female zoo-keeper in the UK has been killed by a tiger after it entered an enclosure at Hamerton Zoo Park.
"We are sorry but our staff but too distressed to speak directly to the media, as one of our colleagues was killed at Hamerton Zoo Park, this morning," the zoo said in a statement.
"This appears to have been a freak accident. A full investigation is currently underway and we hope that more details can be announced as soon as we are able.
"At no point during the incident did any animals escape their enclosures," the statement says.
The zoo was closed for the rest of the day.
"There's no doubting it was a girl's scream and something terrible had happened," visitor Pete Davis told the Daily Mail. "It sounds like a tiger turned on her."
"She had run into the enclosure after hearing one of her colleagues shouting and moments later all hell let loose.
"She let out a blood-curdling scream and then another keeper ran out and shouted 'run'."