Verizon Communications' network was down for tens of thousands of users in the U.S. on Wednesday, preventing people from making calls or texting from cell phones and prompting two major cities to advise residents to use other providers to make emergency calls.

Verizon said it was working to address the problem after service for tens of thousands of customers was interrupted on Monday.

Verizon said it was not immediately clear how long the service would be down. Supreme Court says Illinois congressman can sue over state mail-in voting laws When will the $2,000 tariff checks go out?

Verizon announced in a statement on social media that its engineers are aware of the situation and are working to resolve the issue. "We are aware of an issue impacting wireless voice and data services for some customers.

Many Verizon customers encountered a widespread outage on Wednesday, disrupting calling and other cellular services across the U.S. The New York-based carrier acknowledged that there was an “issue impacting wireless voice and data services.

Verizon confirmed the network issues in a statement shared on social media just after 1 p.m. local time. “We are aware of an issue impacting wireless voice and data services for

Verizon said some of its wireless services were down Wednesday, leaving many customers without access to voice and data services.

At least 175,000 Verizon customers across the nation were experiencing a service outage on Wednesday afternoon, according to the company. Verizon said the outage began around noon Eastern time. It was not immediately clear how long the service will be down.