Outage in Microsoft Azure

Multiple subsea fiber cuts in the Red Sea impacting global communications

Resolved Minor
September 06, 2025 - Started about 1 month 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.

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