In a matter of two days, the stray dog had bitten as many as 30 people, causing quite a menace in the capital city.
Police finally found the dog in Kaiyangli community in Fengtai district and got it confirmed from injured residents that it was the offending animal.
"The injured people said it was the dog that bit them over the weekend after seeing the pictures we showed," said Liu Chunjiang, the police officer responsible for the case.
"Later, we sent the dog to the capital's agricultural department," Liu was quoted as saying by the China Daily.
The dog first attacked a resident at the exit of Taoranting, a station on Beijing subway line 4 in Xicheng district, on Saturday evening.
It then bit more than 20 people in other parts of the city, the capital's public security bureau's official website reported.
