British politician, Sayeeda Warsi accuses those campaigning for Britain to leave the European Union of spreading lies, hate and xenophobia, saying she is switching to the "Remain" camp.
Eighty-four migrants are still missing after an inflatable craft sank off the coast of Libya, according to survivors cited by the International Organization for Migration (IOM).
The UN refugee agency says it feared around 500 migrants from Africa had drowned in the Mediterranean after witnesses said their overcrowded boat sank.
EU and Turkish leaders seek to turn into a lasting accord a plan on easing Europe's migrant crisis hailed as a game-changer by Ankara and Brussels but swiftly criticised by the UN's refugee chief.
More than 10,000 migrant children may have disappeared after arriving in Europe over the past two years, the EU's police intelligence unit says.
Hungary has closed its border with Croatia in an effort to stem the flow of migrants through the country en route to western Europe.
EU ministers approve plans to relocate 120,000 migrants, with Hungary and Czech Republic among four countries voting against.
The flow of migrants through the Balkans picks up again with thousands entering Croatia, and the number doubling in a day for Germany.
Austria says it is deploying troops to help deal with a migrant influx, and will tighten controls on its border with Hungary.
Images of Syrian refugees stuck at borders and at train stations have spurred on an outcry for more to be done to help those fleeing the war.
A convoy of cars driven by German and Austrian activists crosses into Hungary to pick up migrants and help them reach western Europe.
EU nations must accept up to 200,000 refugees as part of a "common strategy" to replace their "piecemeal" approach to the migrant crisis, the UN says.