The U.S.-brokered cease-fire in Bosnia was delayed as Bosnian government officials said conditions necessary for a pause in fighting had not yet been met. Despite the efforts of Muslim and Serb crews working feverishly throughout the weekend to reconnect services, Sarajevo still does not have gas or electricity -- one of the key conditions of the cease-fire agreement. "Bosnian Serb authorities had shut down the utilities to Sarajevo at the end of May," reports Alexandra Stiglmayer from Bosnia, "forcing its residents to spent hours queuing at public water distribution points and lugging heavy canisters home, and denying them any form of night life due to the lack of electricity." A Bosnian government official said the cease-fire would occur as soon as utilities were restored to the city. Turning on the power may be difficult, reports TIME's Bruce Van Voorst, since the Bosnian Croats mined the power generating stations. Earlier, NATO planes attacked Serb forces in northeastern Bosnia in retaliation for Serb attacks that killed at least 15 Muslim civilians and wounded hundreds more over the weekend.