Google Drive has been titsup for the last few hours with many users being greeted by 502 error messages when they attempt to access the online storage service.

For many, it remains stubbornly offline for now.

Google confirmed that there was a problem with Drive about two hours ago after users complained about service disruption.

In the last hour the ad giant posted a little more detail about the outage on its Apps Status Dashboard:

We're aware of a problem with Google Drive affecting a significant subset of users. The affected users are unable to access Google Drive.

The company said it would continue to provide updates about the titsup service, but was unable to say, at time of writing, when the problem might be fixed.

Last week, Microsoft suffered a major cloudy outage after a a dodgy firmware upgrade cooked its servers and knocked its Hotmail and Outlook.com email services offline for 16 hours. ®