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Zoo's new arrivals

Sveta and her twins Credit: Banham Zoo

Staff at Banham Zoo in Norfolk are celebrating the arrival of twin tiger cubs.

Keepers installed CCTV cameras so that they could monitor their Amur tigress, Sveta, giving birth without disturbing her.

Keepers monitor the progress of the twins by CCTC cameras Credit: Banham Zoo

The twins are said to be making excellent progress.