An outage at an Amazon Web Services (AWS) data center has impacted crypto exchange operations.

As reported by CoinDesk, Binance and KuCoin are among those impacted. Binance said in a post on X, formerly known as Twitter, that the problem was being caused by a "temporary network interruption."

According to the AWS Health Dashboard, the issue has since been resolved.

The dashboard adds that the interruption was caused by "connectivity issues to a subset of EC2 instances in a single Availability Zone (apne1-as4) in the AP-Northeast-1 region."

"This was the result of an issue in which the primary and secondary power was interrupted to the affected EC2 instances. During this time, customers may also have experienced increased error rates and latencies for instances launched in the affected zone, along with other AWS APIs that use the affected EC2 instances. Engineers were automatically engaged within minutes and immediately began investigating mitigations. We do not expect this issue to recur."

Binance has since said that "all services are starting to recover and resume" but that some services may still experience delays. According to CoinDesk, the crypto exchange resumed enabling withdrawals just five minutes after the issue was first reported.

The AP-Northeast-1 region is located in Tokyo, Japan, and has four availability zones. In January 2024, the cloud giant announced it would invest more than $15 billion in expanding its cloud computing infrastructure in Japan by 2027. As part of that investment, it was set to expand its data centers in Tokyo and Osaka.

AWS first entered Japan in 2009. The company launched its first cloud region in the country in 2011 in Tokyo and another in Osaka in 2021.

The Tokyo region previously experienced a six-hour outage in 2021 when the AWS Direct Connect hybrid cloud networking service had trouble connecting due to multiple network device problems.