Commander Harbour said a helicopter from the Russian destroyer, the Marshal Shaposhnikov, approached the tanker “and was fired upon by pirates.” The destroyer, knowing the merchant crew was locked down and safe, turned its guns onto the superstructure of the tanker as the pirates put up resistance. The Russian sailors offered a “robust” response, Commander Harbour said, and the pirates, thought to be from Somalia, eventually surrendered to a boarding party that took control of the tanker in the teeth of oppositions from its captors.
Т.е. вертолет был обстрелян после чего эсминец навел орудия на надстройку танкера. Русские моряки дали "твердый" ответ, и пираты в итоге сдались высадочной партии.