Social media site Twitter briefly went down on Friday morning.
Outage Report, which tracks if social media sites are working, showed a spike in reports from users saying the site isn't working.
There were hundreds of outage reports from countries such as India, Australia and Singapore.
Users were saying that "everything is down" and the "mobile app [is] not working".
Down Detector also said there are "possible problems at Twitter" and has also had a small spike.
After a short period of time, the site began working again.