Putting armed guards on merchants has slowed the pirates down.
"Dutch marines warded off the attack when pirates approached the Flintstone", a ship that dumps rocks to protect oil and gas pipelines, at around 6:00 am (0500 GMT), it said in a statement.
"The marines tried in vain to stop the fast-moving skiff, occupied by six men armed with an assortment of weapons including a rocket-propelled grenade (RPG), by firing tracers as a warning," the ministry said.
After one of the men aimed the RPG at the ship, the marines fired on the skiff, which turned around and joined the larger fishing vessel.
"It's not excluded that there may have been casualties among the attackers," the ministry said.
Wednesday, January 18, 2012
Somali pirates do not press encounter as Dutch marines ward off pirate attack: