Comcast customers are suffering through an outage hitting business and residential Internet, video and voice, the company said Friday. The cause is a fiber cut that Comcast believes affects other providers as well.

"We identified two separate and unrelated fiber cuts to our network backbone providers. Our engineers worked to address the issue immediately and services are now being restored to business and residential Internet, video and voice customers. We again apologize to anyone who was impacted," the company said in an emailed statement.

Downdetector.com reported outages in the Comcast Xfinity service beginning at 12:36 p.m. ET Friday, with reports coming from Seattle, San Francisco, Chicago, Philadelphia, New York and more. More than 11,000 reports of outages were lodged in the first four hours.

Figure 1: Downdetector live outage map, about 4:35 p.m. ET Friday.

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