900 people drowned crossing the Mediterranean last week as EU leaders step up efforts to destroy traffickers' vessels.
EU leaders agree to triple naval search mission in Mediterranean following drowning of 900 people in past week.
Unmanned aircraft could be used to spot migrants boats in trouble, helping to stop further tragedies.
Three other rescue operations underway on Monday as EU ministers present plan to double funding for Triton operation.
Greece is unable to react to Turkey's trespassing into its territory due to lack in military funding.
Over 10,000 migrants arrived in the first three months of this year.
The North African migrants were on seven vessels which were rescued in a single day this week, Italian and Tunisian authorities said on Wednesday.
Italian defence minister speaks of "urgent" need to tackle jihadists in North Africa amid wave of boat refugees.
ISIS militants allegedly smuggled into Europe through eastern Mediterranean borders disguised as refugees.
The boat sent out a distress call on Tuesday, but no gunmen were found on board
Air crews raced to rescue as many of the hundreds trapped on board as possible before nightfall as storms hampered seaborne operations.
Hundreds of migrants fleeing war zones in Africa and the Middle East have drowned in the "deadliest weekend ever in the Mediterranean", says UNHCR
More than 5,000 people were rescued by the Italian Navy this weekend as migrants attempt to cross from North Africa.