Sui Network, a layer 1 blockchain developed by Mysten Labs, experienced a mainnet outage on Thursday that temporarily halted transaction processing.
“Sui Mainnet is currently experiencing a network stall. The Sui Core team is actively working on a solution,” the project posted on X. “Be aware that transactions may be paused at this time. Updates will be shared as soon as they are available.”
The disruption appeared to pause activity across the network, though the team had not disclosed the cause of the issue at press time. The incident adds to a series of technical disruptions for Sui, which has faced periods of degraded performance and outages since late 2024, including one earlier this year.
Sui, which launched in 2023, is among a group of newer layer 1 blockchains competing with Ethereum and Solana by offering high-speed transactions and low fees. The network’s native SUI token fell 8% in the 24 hours surrounding the incident, though broader crypto market conditions were mixed.
Blockchain outages remain a closely watched issue for traders and developers, particularly for networks that market themselves as high-performance infrastructure for decentralized finance and gaming applications. The Sui team said it would provide additional updates as the investigation continues.