Incedents of piracy and armed robbery
The IMO has issued its monthly report MSC.4/Circ.167 dated 7 February 2011 giving all incidents of piracy and armed robbery against ships reported to the IMO between 31 December 2010 and 31 January 2011.
The report makes a distinction between acts of piracy, and acts of armed robbery against ships, and attempted attacks.
Source : IMO