Verizon customers across the United States experienced widespread outages Monday, with users reporting an inability to make calls or use the internet.

A week after experiencing widespread network issues, thousands of users are reported trouble with Verizon’s cell phone service on Monday morning, according to the website Downdetector.com. Verizon said there was a brief issue earlier but that it’s been fixed.

Verizon and AT&T customers have reported their phones being stuck in SOS mode due to what appears to be a widespread outage.