A ranger at a Chimpanzee sanctuary near Nelspruit is fighting for his life after he was attacked by two frenzied animals on Thursday afternoon.

Netcare 911 says the man was leading a tour group at the park when two Chimpanzees reportedly pulled him under the perimeter fence and into the enclosure where he was attacked by the animals.

Paramedics entered the large enclosure with armed escorts to reach the critically injured man who sustained multiple and severe bite wounds.

No one else was injured.