Google’s search engine experienced a rare outage Monday night.
Google Search inquiries generated an error message for many people around the world, from the U.S. to the U.K. to Singapore, according to data from DownDetector.
Users saw either a 500 or 502 error message. “The server encountered an error and could not complete your request,” the message read.
Other users reported Google’s home page seemed to take longer to load. Other Google apps, such as Gmail and YouTube, did not appear to be affected.
According to DownDetector, the problem began around 9:09 p.m. Eastern, spiked around 9:40 p.m., and appeared to be largely resolved by 10:30 p.m.
Google did not immediately respond to a request for more information.
Earlier Monday, three electricians were injured by an “electrical incident” at a Google data center in Council Bluffs, Iowa, according to a report by SFGate. That incident reportedly happened around noon local time, and it was unclear if it was related to the later outage.