Siberian tiger escaped from its enclosure at the San Francisco Zoo on Christmas day, killing one visitor and mauling two others before being shot dead by police, authorities said.

• 圣诞节那天，一只西伯利亚老虎从旧金山动物园的围栏中逃脱，咬死一名游客并抓伤两人，后被警察开枪击毙，报道称。