Somalia: Piracy Analysis and Warning Weekly (PAWW) Report (Horn of Africa) for March 24-March 30, 2011 [open pdf - 446KB]
"The Piracy Analysis and Warning Weekly (PAWW) Report is a review of recent Somali piracy incidents and an outlook on threats around the Horn of Africa. [...] Pirates continue to operate at high levels. There were four piracy incidents in this one week period: one hijacking, one boarding, and two attacks. Incidents took place in the Arabian Sea, Indian Ocean, and Gulf of Aden."
Office of Naval Intelligence: http://www.oni.navy.mil/
Piracy Analysis and Warning Weekly (PAWW) Report (March 24-March 30, 2011)