Admiral Enrico Credendino said people smuggling groups attacked migrant boats to poach them.
The change to the EU's naval operation marks its transition from a reconnaissance and rescue mission.
More than 2,700 deaths have been reported on the South Mediterranean sea route this year.
Royal Navy Frigate HMS Richmond and HMS Enterprise will search, seize and divert smuggling vessels.
Hillary Clinton's controversial emails have revealed the details.
US documentary filmmaker claims to identify the man who made the bomb that brought down the aircraft
Security had to be increased at the base to the point that training the 230 cadets was impossible.
John Kerry wants a diplomatic solution in Syria, and offers EU more help with refugees.
Karim Khan QC, lead lawyer in the defence for Baghdadi al-Mahmoudi, has called for fair judicial proceedings.
New Labour leader has been unfairly attacked for his 'links' to anti-Semites and Holocaust deniers
Tony Blair allegedly tried to save former Libya dictator Muammar Gaddafi before the 2011 allied bombing of the country, it was claimed.
Two boats carrying up to 500 people capsize off the coastal city of Zuwara
Italian coastguard confirm about 3,000 migrants rescued from the Mediterranean in a single day.
50 bodies found in the hold of migrant boat headed towards Italy and 430 migrants rescued.
Karami, who is only in his twenties, rose to prominence in Benghazi and later Derna.
Italian coastguard received SOS signals from 18 vessels carrying refugees.
Video comes fortnight after footage of dictator's son being tortured emerged.
Arab League consider military intervention after warnings from Libyan government.
Government official later says resignation is not official.
At least 200 people drowned after fishing boat capsized off Libyan coast.
Man appearing to be al-Saadi Gaddafi is tied down and beaten on the soles of his feet.
The piece of grisly political theatre is taken directly from Isis's playbook.