Verizon has confirmed an outage affecting some of its mobile phone users that sparked a flurry of complaints on social media about disruptions to placing calls and accessing the internet.

Around 13,000 customers are still without service according to Downdetector. That's down from 104,000 earlier Monday.

The number of cases peaked at more than 100,000 Monday morning, according to the website Downdetector. Users complained of being unable to make calls or send texts.