Outage in Microsoft Azure
Multiple subsea fiber cuts in the Red Sea impacting global communications
Resolved Minor
September 06, 2025 - Started 8 months ago
- Lasted about 17 hours
Incident Report
Impact SummaryStarting at 05:45 UTC on 06 September 2025, traffic traversing through the Middle East originating and/or terminating in Asia or Europe regions may experience increased latency due to multiple undersea fiber cuts in the Red Sea. The disruption has required rerouting through alternate paths which may lead to higher-than-normal latencies.This advisory is intended to raise awareness ahead of increased demand as the regions enter the start of its work week.Current StatusMultiple international subsea cables were cut in the Red Sea. Our engineering teams are actively managing the interruption via diverse capacity and traffic rerouting, while also discussing alternate capacity options and providers in the region.Undersea fiber cuts can take time to repair, as such we will continuously monitor, rebalance, and optimize routing to reduce customer impact in the meantime. We’ll continue to provide daily updates, or sooner if conditions change.
Components affected
Microsoft Azure Network Infrastructure Microsoft Azure Central India Microsoft Azure Network Infrastructure Microsoft Azure East Asia Microsoft Azure Network Infrastructure Microsoft Azure Switzerland North Microsoft Azure Korea South Microsoft Azure UK South Microsoft Azure Network Infrastructure Microsoft Azure Jio India Central Microsoft Azure Japan East Microsoft Azure Network Infrastructure Microsoft Azure Jio India West Microsoft Azure Norway West Microsoft Azure Germany North Microsoft Azure Japan West Microsoft Azure West Europe Microsoft Azure Network Infrastructure Microsoft Azure Network Infrastructure Microsoft Azure UK West Microsoft Azure Network Infrastructure Microsoft Azure Germany West Central Microsoft Azure France Central Microsoft Azure Network Infrastructure Microsoft Azure Network Infrastructure Microsoft Azure UAE North Microsoft Azure North Europe Microsoft Azure ‡Qatar Central Microsoft Azure Italy North Microsoft Azure France South Microsoft Azure Network Infrastructure Microsoft Azure Network Infrastructure Microsoft Azure Korea Central Microsoft Azure South India Microsoft Azure Sweden Central Microsoft Azure Network Infrastructure Microsoft Azure Southeast Asia Microsoft Azure ‡Sweden Central Microsoft Azure Switzerland West Microsoft Azure UAE Central Microsoft Azure Norway East Microsoft Azure ‡Sweden South Microsoft Azure West India Microsoft Azure Poland CentralTrusted by 1,000+ teams
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