Thousands of Comcast subscribers across the country were without Internet and TV service for a few hours Monday morning, but the company said most customers had been restored as of Monday afternoon.

According to website Downdetector.com, more than 17,000 Comcast customers lost service at about 11:30 a.m. on Monday. By 1:22 p.m., most customers were back in service.  cause fo eth outage wasn't immediately determined.

According to Downdetector.com, which monitors telecom outages across the country, affected areas included New York, Boston, Chicago, Denver, Houston, Philadelphia, Seattle, Portland, Minneapolis, Baltimore and Washington, D.C.

“We have repaired the temporary network interruption that impacted some of our services this morning,” Comcast said in a statement.  “Our engineers continue to work on this issue and almost all services have already been restored.  We apologize for any inconvenience this has caused our customers.”

Comcast also kept customers informed about the outage and the work to restore service through its website and social media.