(AP) — A major internet outage affecting Microsoft is disrupting flights, banks, media outlets and companies across the world, with problems continuing hours after the technology company said it was gradually fixing an issue affecting access to Microsoft 365 apps and services.

Airlines and airports in the United States, Europe, Australia, India and elsewhere were reporting problems, with some flights grounded. Retail outlets, banks, railway companies and hospitals in several parts of the world were also affected in what appeared to be an unprecedented internet disruption.

Locally, businesses and media outlets were affected, as well as some area gas stations who could not connect to computers.

Officials in some U.S. states, including Alaska, Virginia and Iowa, warned of problems to 911 emergency call centers in their areas. Alaska State Troopers warned that many 911 and nonemergency call centers across the state weren’t working correctly and shared alternate numbers.

In Virginia, the City of Fairfax Police Department said on social media that it was experiencing technical difficulties with its phone systems, including 911. The department shared a nonemergency number for callers and said 911 could still be used, but calls wouldn’t go directly to the dispatch center.

The New Hampshire Emergency Services and Communications reported a temporary interruption to 911 calls early Friday, with the system fully restored several hours later, officials said. In Iowa, the Marion County Sheriff’s Office warned on social media that phone lines were down and 911 calls might be routed to neighboring counties, but emergency calls would be promptly redirected to the sheriff’s office.

In New England, the outage led some hospitals to cancel appointments.

A spokesman at Mass General Brigham, the largest health care system in Massachusetts, said the outage had resulted in all scheduled nonurgent surgeries, procedures and medical visits being canceled for Friday. Emergency departments remain open and care for patients in the hospital hasn’t been impacted.

Paris Olympics organizers say some Olympic delegations’ arrivals, as well as the delivery of some uniforms and accreditations, have been delayed because of the outage.

The organizers said in a statement that ticketing and the torch relay haven’t been affected.

“Our teams have been fully mobilized to ensure the continuity of operations at optimum levels,” organizers said.

In the U.S., the FAA said the airlines United, American, Delta and Allegiant had all been grounded.

Universal Studios Japan in Osaka, western Japan, said the global system outage that started Friday will continue to affect ticket sales at the park over the weekend.

The park said its ticket booths sales will not be available Saturday and Sunday and asked visitors to purchase their tickets on the USJ official website or via designated ticket sales site Lawson Ticket. Park attractions aren’t affected.