Crews in Jersey City have begun repairing a water main break responsible for disrupting service with lowered pressure. 

A repair crew works on Jersey City water main break (7 ABC)

Jersey City Mayor Steve Fulop tweeted just before noon that the Jersey City Municipal Utility Authority believes they have located the break at Grand and Grove and United Water has started repairs.

In a statement the city says the problem is in the interconnect valve and the crews are in the process of isolating the interconnect.

The area affected includes the Hoboken border south to Newark Avenue and Marin Boulevard west to Jersey Avenue. A boil water order is expected according to a tweet from the mayor.

A boil water order has been issued for the area. Fulop says he has asked for "additional resources" from United Water.

10 Jersey City schools are being dismissed early according to the city's Facebook. PS 3, MS 4, PS 5, PS 16, PS 22, PS 37, Bright St. Academy, Ferris HS, and Junior Academy will be released at 12:45 p.m.. Staff will remain at the school for the day.

Pressure checks are being conducted by the Jersey City Fire Department and water tank trucks sent to Jersey City Medical Center.

CBS New York reports customers can bring clean, empty containers to 355 Grand Street to get them filled.

This is a breaking story. Check back for additional details.