Ms Natarajan, who is India's environment minister, has ordered a federal probe into the incidents.

BBC: India probes attacks on rhinos in Assam state

However, sources also indicate that India's Environment Minister Jayanthi Natarajan did not attend the overnight talks.

BBC: UN climate talks 'approaching decision time'

But India's Environment Minister, Jayanthi Natarajan, said this was not the case.

BBC: UN climate talks publish revised draft text

One week prior to the summit, Jairam Ramesh, member and minister of state for environment and forests, told India's Parliament that the country should plan to reduce the ratio of pollution to production by 20% to 25% compared with 2005 levels, but like China, not accept a legally binding emissions reduction target.

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