WESTPORT — An early-morning water main break Friday has closed a section of Long Lots Road while emergency repairs take place.

Long Lots Road will be closed to traffic — between Cedar Road to its intersection with Post Road East — for at least four hours, according to an emergency alert issued about 4:45 a.m. Friday.

Police officers will be on site to help morning traffic navigate around the construction site and nearby streets, according to the alert from police Sgt. David Librandi.