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UK nuclear-powered submarine positioned in Arabian Sea amid regional tensions, Daily Mail reports

By Thomson Reuters Mar 21, 2026 | 6:54 PM

March 21 (Reuters) – A British nuclear-powered submarine equipped with Tomahawk cruise missiles has taken ​position in the Arabian Sea, ‌giving Britain the capability to launch long-range strikes if regional conflict escalates, the Daily Mail reported on ‌Saturday.

Reuters ​could not immediately ⁠verify the report. ⁠The British Ministry of Defence did not immediately respond to a Reuters request for comment.

HMS ​Anson, armed with Tomahawk Block IV missiles and Spearfish torpedoes, ⁠left Perth earlier ⁠this month and travelled ​roughly 5,500 miles to the ​region, the Daily Mail said.

The submarine ‌surfaces periodically to communicate with the UK’s Permanent Joint Headquarters in Northwood, where any launch ⁠order would be authorised by the prime minister and conveyed by the ⁠chief of ‌joint operations, the ⁠report added.

The deployment comes ​after ‌Downing Street authorised the U.S. ​to ⁠use British bases for strikes on Iranian sites threatening the Strait of Hormuz.

(Reporting by Rajveer Singh Pardesi in Bengaluru; Editing by ​Nia Williams)