Crews repaired a water main break on Harrison Avenue in the South End late Wednesday night, officials said.
The Boston Water and Sewer Commission said on Twitter at 11:30 p.m. that the break at East Brookline Street and Harrison Avenue “has been capped.”
Crews were working to restore affected services as soon as possible, the commission said.
“Road closures in effect. Expect delays and detours,” Boston police said on Twitter.
Further information was not immediately available.