Over 180,000 people temporarily lost their power in Manhattan early Friday following a string of outages in various neighborhoods. All power knocked out in the city by Isaias, which affected over 1.2 million, is expected to be restored by Sunday at 11 p.m. at the latest. Electricity provider Con Edison said in a tweet that it is investigating. The power outage caused some transportation havoc as it delayed the morning commute for many. Hudson, Harlem, New Haven Line Service into and out of Grand Central Terminal is experiencing delays of 10 to 15 minutes. The power loss disrupted the signal system and station lighting on some subway lines. The power outage also disrupted cellphone service. Power was returning to many areas. As of 5.50 a.m. it had returned to parts of Harlem. The power outage was caused by a problem with a transmission system. Residents rushed to social media to share eerie footage of the blanket of darkness that covered the Manhattan neighborhoods. Those working from home have been forced to deal without internet or phone services. Con Edison said later stated that a problem with its transmission system ’caused three networks in Manhattan to lose their electric supply,’ just after 5 a.m. Later in the morning, a separate outage was reported in Queens.