Twitter suffered an outage on Thursday, according to the social network and data and comments on website-outage monitoring site Down Detector.

Service appears to be returning to normal for some users, including at Business Insider.

At 3:56 p.m. ET, Twitter updated its status to state the company identified the issue and service is returning to normal for some users.

“The outage was due to an internal configuration change, which we’re now fixing. Some people may be able to access Twitter again and we’re working to make sure Twitter is available to everyone as quickly as possible.”

Twitter CEO Jack Dorsey tweeted an acknowledgement of the outage and service is “slowly coming back up.”

Business Insider was unable to get the social network’s desktop website, mobile website, or app to load on Thursday afternoon.

According to Down Detector, the Twitter outage is still affecting the northeastern US, the western US coast, Europe and Japan the most. Reports of Twitter outages on Down Detector returned to normal levels around 4:00 p.m. ET.

twitter outage july 11 2.0

Foto: sourceDown Detector

Thursday’s Twitter outage comes amidst an increase in site and service outage over the last year, and especially the last few months. Facebook and Instagram, for example, have been crashing notably more often over the last year.