With tensions in the Gulf already quite high, Iran sends warship to "protect" their shipping. Now quite a few countries featuring warships all in the same gulf. This has the potential for problems and mistakes.

Iran sends ship against pirates

World leaders have called for more action to tackle piracy

Iran has sent a warship to the Gulf of Aden to protect its merchant shipping from attacks by Somali pirates, Iranian state media has reported.

Pirates have attacked more than 100 ships, including two Iranian vessels, in the gulf in the past year and at least 15 are still being held.

Several countries now have naval forces operating in the region.