Hungarian PM Viktor Orban has vowed to oppose an EU plan aimed at bolstering the bloc's external borders, accusing Brussels of wanting to take away Hungary's control of its own frontiers.
During his annual address to the European Parliament Jean-Claude Juncker unveiled measures to strengthen the asylum system in the Union.
European defence ministers have pledged their support to Operation Sophia, but the Italian government is demanding a change to the rules and calling on other member states to take in migrants.
The Aquarius rescue ship arrives in Malta after EU countries thrashed out a deal to take in the 141 migrants onboard, defusing another diplomatic standoff in the Mediterranean.
European countries face pressure to resolve a new standoff with operators of the migrant rescue ship Aquarius which is stranded for a second time in the Mediterranean carrying 141 people.
A Spanish migrant rescue boat that has been rejected by Italy and Malta has docked in Spain amid a heated debate over which countries will accept the 87 refugees on board.
Berlin has concluded a deal with Madrid for Spain to take back migrants registered by Spanish authorities, as Germany seeks to curb new arrivals.