(CNN) -- A Russian heavy missile cruiser stopped three pirate ships off the coast of Somalia, and detained 10 pirates, according to a statement released Friday by Russian Navy headquarters in Moscow.

The cruiser, Peter the Great, halted two small high-speed motor boats and a mid-size, support vessel on Thursday, the Russians said.
The Russians said a Russian helicopter Ka-27, which took off from the cruiser, had located two small boats, which were moving toward an Iranian fishing vessel at high speed last Thursday.
When those in the boats spotted the helicopter overhead, the boats began slowing down, then veered off toward their support vessel, which was adrift nearby.
The helicopter crew could see pirates in the two motor boats throwing weapons into the sea, and kept chasing the boats until the Russian cruiser arrived in the area.
"The three boats were (captured and) delivered to the Peter the Great, and ten Somalian pirates were taken aboard.