According to a report in Hindustan Times, a 20 year old hippopotamus killed a cleaner at Lucknow zoo, when the cleaner went to clean the enclosure. The cleaner Suraj Dhanuk was a contract employee and the zoo keeper had a narrow escape, jumping over the walls.
Usually the hippos are locked in the far end of the zoo , when the cleaner goes to clean their enclosure.
However, allegedly the hippos were not locked up properly, and attacked the cleaner
Though the attacked cleaner was taken to the hospital immediately he was declared dead.
The hippo was transferred to lucknow zoo from kanpur zoo.
Hippos are some of the largest land animals at present.