Officers from the sub-bureau quickly arrived at the scene.
Tips
usage
分局 most commonly refers to a police sub-bureau (公安分局) — the district-level police office below the city-level 公安局. It also applies to other agencies: 税务分局 (tax branch), 工商分局 (commerce branch). Below 分局 is 派出所 (pàichūsuǒ, police station).