The Diplomat:

India’s Defense Research and Development Organization (DRDO) on Sunday launched a K-4 intermediate-range, nuclear-capable submarine-launched ballistic missile (SLBM) from a submerged platform off the coast of Andhra Pradesh in southeastern India, according to local media reports.

Citing Indian government sources, ANI reports that the test firing of the K-4 SLBM was a success. Neither DRDO nor the Indian Ministry of Defense (MoD) officially confirmed the missile launch to date.

A Notice to Airmen (NOTAM) was issued earlier this month over a 3400-kilometer flight corridor over the Bay of Bengal for January 19 to 21. India had issued a similar notification for November 2019 leading to the speculation that a K-4 launch was imminent at the time but none occurred.

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