A month-old polar bear cub is being raised by humans at a Danish zoo after his mother failed to produce enough milk to feed him, the Associated Press reported.

The cub, Siku, is doing "really fine," Scandinavian Wildlife Park manager Frank Vigh-Larsen said.

The cub was 3 pounds at birth, and now weighs 7 pounds.

Siku was taken from his mother when he was two days old, because he was  "moaning and being unruly all the time."

Siku is being touted as the new Knut, a polar bear who was born in the Berlin Zoological Garden and rejected by his mother.

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The Associated Press contributed to this report.