A 40-year-old man was critically injured on Friday when a lion attacked him inside the enclosure in Kolkata’s Alipore Zoo.

The lion attacked the man when he entered the animal’s enclosure, leaving him seriously injured.

The man was rushed to SSKM Hospital where he is undergoing treatment but his condition is “critical”, hospital sources said.

The incident happened this morning at around 11.30 am when the man after entering the zoo “somehow managed to climb the boundary wall before jumping over the two netted-boundaries to get inside the enclosure.

The lion, which was out of its cage, attacked the man. He has been very badly injured,” an official said.

Alerted by the other visitors, security guards rescued the man and sent him to the SSKM Hospital after informing local police, the official added.

“We are checking the CCTV footage to get a clear picture of the incident. We are trying to find out his identity,” a policeman said.