Internet users across the northeastern US have experienced widespread outages for several hours, interrupting work and school because of an unspecified Verizon network issue.
"An internet issue impacting the quality of our Fios service throughout the northeast has been resolved," said spokesman Jim Greer in a statement on Tuesday afternoon.
He said service levels "are returning to normal" and the company was investigating what happened.
The service interruptions were unrelated to a cut fibre in Brooklyn, New York, which caused problems for people in the area.
People posting on Twitter reported having issues connecting with various online services in the densely populated region stretching from Washington to Boston.
The east coast outages began at 11.25am and recovery began at 12.37pm, according to Doug Madory, director of internet analysis at Kentik, a network monitoring company.
Australian Associated Press