Three zoo workers have been arrested on suspicion of causing unnecessary suffering to animals in their care.
CCTV recordings from the elephants enclosure showed two of them being beaten.
The three male members of staff were immediately sacked, and the incidents reported to Leicestershire police.
More top news
West Midlands Weather: Windy on Sunday with showers and sunny spells
East Midlands Weather: Heavy rain over Derbyshire hills, drier and brighter elsewhere
The city’s spike in coronavirus cases has sparked a report that it may be the first UK location to be subjected to a district lockdown.