911 Outage Reported Across Multiple US States

Several US states were experiencing a 911 emergency services outage late on Wednesday, including the entire state of South Dakota and portions of Nevada, Texas, and Nebraska, according to local officials.

It was not immediately clear what was causing the outages.

Requests for comment from the Department of Transportation's Office of Emergency Medical Services, which houses the National 911 Program, were not immediately returned, nor where those sent to the US Federal Communications Commission.

The Federal Emergency Management Agency also did not respond to requests for comment.

The South Dakota Department of Public Safety, Las Vegas Metropolitan Police Department and Douglas County, Nebraska, all reported outages to their 911 services.

Late on Wednesday, the Las Vegas police said their 911 service had been restored, and that everyone who called during the outage had been called back and given assistance.

In Texas, the police department in Del Rio, on the border with Mexico, said its Facebook page that 911 services were down.

South Dakota's Department of Public Safety said efforts were underway to resolve the issue, without disclosing the cause of the outage.

Authorities also asked people not to call 911 as a test._Agencies