MUMBAI: Actress Raveena Tandon, who has been appointed as the 'Park Ambassador' of the Sanjay Gandhi National Park, has urged people not to lock up animals in cages.

The 43-year-old took to Twitter to express her anger in the wake of the first-ever Humboldt penguin's death in Mumbai zoo.

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"Our planet's co-inhabitants are not created to be jailed or put into zoos. Leave them where they are meant to roam free. I was against these people bringing in the penguins here in the first place," she wrote on Saturday.

(PHOTOS: Raveena Tandon & Gracy Singh grace wildlife photography exhibition)

Along with the tweet, the "Bulandi" actress also shared a newspaper clipping about the death of the penguin.