Web infrastructure company Cloudflare said it is experiencing problems across its network on Tuesday, curtailing access to some popular websites.

“Cloudflare is aware of, and investigating an issue which potentially impacts multiple customers,” the company said online at around 7 a.m. ET.

Minutes later, the company said it had begun to resolve the issue. “We are seeing services recover, but customers may continue to observe higher-than-normal error rates as we continue remediation efforts,” Cloudflare said.

Some popular websites, like social media platform X and artificial-intelligence chatbot ChatGPT, appeared to be down or limited on Tuesday.

A landing page on X alerted ABC News to an “internal server error,” urging users to “visit cloudflare.com for more information.”

This is a developing story. Please check back for updates.