untrue

Bristol Zoo Project said the posts had led to "misinformation" with "untrue and inflammatory information about the gorillas".

“It is flatly untrue to suggest that these changes are arbitrary or politically motivated,” the spokesperson told Reuters.

"This is, to the best of my knowledge, categorically untrue," he said.

"Suggestions that the government concealed evidence, withdrew witnesses, or restricted the ability of witnesses to draw on particular bits of evidence are all untrue," he said.

They say Mas'ud's version of events is implausible and untrue, and argue that the contents of the statement can be corroborated by reliable independent evidence gathered over many years.