Google-based services experienced widespread outages for about 45 minutes Monday morning, disrupting those who lean on the tech giant's cloud-based applications.

Gmail, Google Drive, Google Meet and YouTube were among the services that were down across multiple countries. Smart home devices that rely on Google also were reportedly impacted. Some reports said the Google search engine itself was affected, although it appeared to be back up far sooner than the other services.

According to the site DownDetector.com, complaints about outages spiked shortly before 7 a.m. Eastern time.

In a statement, a Google spokesperson blamed the problem on an "internal storage quota issue."

"Today, at 3.47AM PT Google experienced an authentication system outage for approximately 45 minutes due to an internal storage quota issue," the spokesperson said. "Services requiring users to log in experienced high error rates during this period. The authentication system issue was resolved at 4:32AM PT. All services are now restored. We apologise to everyone affected, and we will conduct a thorough follow up review to ensure this problem cannot recur in the future.”

Down Detector's outage map showed complaints mainly coming from the United States, Europe, Brazil, India and Japan, although users in many other countries also reported problems.