A white tiger has killed a man who climbed over a fence at the New Delhi zoo in India before jumping into the animal's enclosure.

Despite repeated warnings that he should not get too close to the outdoor enclosure, the man eventually climbed over a knee-high fence and small hedges, then jumped down 18ft into a protective moat, said National Zoological Park spokesman Riyaz Ahmed Khan.

The tiger, which lives on a grassy tree-filled island, grabbed the man from the moat.

Authorities eventually frightened the tiger into a small cage inside the enclosure.

The man, whose body remained in the outdoor enclosure two hours after the attack, was dead by the time help reached him, Mr Khan said.

The man has not been identified.

The zoo remained open, though authorities eventually roped off the tiger enclosure.