A silverback gorilla escaped from an enclosure and injured two people Friday at a Rotterdam zoo, a police spokeswoman said, according to AP. Yvette de Rave said it was not yet known how the gorilla got out or how serious the injuries were. «From what I can draw from first reports, (the injuries) aren't serious,» she said. The Diergaarde Blijdorp zoo was being evacuated and the gorilla was believed to have entered a building where he is being isolated, she said. «This is a place with thin windows, not built to contain a gorilla,» she said. «Now someone has to go in there and get him.» -- SPA