Englewood Hospital and Medical Center?s unionized registered nurses are locked out of the building Friday.

The hospital locked out the 660 members after contract talks with the Health Professionals and Allied Employees broke down. Managers and replacement nurses are working instead. The union offered Thursday to postpone a planned strike. However, the hospital says since the union refused to withdraw a strike threat it was obligated to line up replacement nurses.

Englewood is among nine New Jersey hospitals where nurses voted in mid-May to authorize strikes if contracts were not settled by June 1. So far, strikes have been averted at the others.