Chicago-area suburbs report 911 problems NBC Chicago [Video]

Editor’s Note: At 10:20 a.m., AT&T provided an update that said “three-quarters” of their network had been restored. Our original story continues below.

Some suburbs in the Chicago area are warning that residents have been unable to call 911 as thousands of AT&T customers are without power amid an outage.

“A systemwide outage is affecting AT&T and some other cellphone users, including the ability to call 911,” the Lake County Sheriff’s office posted on social media. “In case of an emergency, please attempt to use another phone with service or a landline until service providers can restore connectivity across the United States.”

A spokesperson for the sheriff’s office said many residents have been unable to reach emergency services.

Evanston police and fire officials noted that customers of AT&T, Verizon, Cricket and multiple other carriers may not be able to call 911 and urged residents to “utilize the text 911 feature” …