Google's YouTube video streaming service suffered a major outage Tuesday, leaving users unable to access the website.

The site was back up by 11 p.m. ET Tuesday, but the company hasn't given an indication as to what caused the hiccup. 

Users looking to access YouTube found a blank page with no videos to select. 

Thanks for your reports about YouTube, YouTube TV and YouTube Music access issues. We're working on resolving this and will let you know once fixed. We apologize for any inconvenience this may cause and will keep you updated.

— Team YouTube (@TeamYouTube) October 17, 2018

About an hour later, the YouTube social media team tweeted an update. 

We're back! Thanks for all of your patience. If you continue to experience issues, please let us know. https://t.co/NVU5GP7Sy6

— Team YouTube (@TeamYouTube) October 17, 2018

Google is a subsidiary of Alphabet Inc. (GOOGL - Get Report) .