The latest developments in Europe's immigration crisis (all times local):

12:15 p.m.

Germany's vice chancellor is dismissing a proposal by a senior member of Chancellor Angela Merkel's party to manage the migrant influx by setting up centers at borders from which refugees would be allowed into the country according to daily contingents.

Julia Kloeckner, a deputy leader of Merkel's Christian Democrats, floated her "plan A2" over the weekend. Kloeckner hopes to become governor of Rhineland-Palatinate state in a mid-March election, ousting the center-left Social Democrats.

The Christian Democrats and Social Democrats are traditional rivals but currently govern Germany in a "grand coalition."

Vice Chancellor Sigmar Gabriel, the Social Democrats' leader, said Monday that Kloeckner's idea is a "campaign action" and is "not practicable."

Merkel spokesman Steffen Seibert responded cautiously to Kloeckner's proposal. He said that "some of it complements the government's policy, some overlaps with it."

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09:30 a.m.

European Union justice and interior ministers have started urgent discussions on how to tackle the migrant crisis amid the stream of new arrivals and continuing disagreements over how to seal off borders.

Monday's meeting comes days after EU President Donald Tusk warned that Europe's passport-free travel area, known as Schengen, could break apart if the migrant strategy is not sorted out within two months.

Ministers will be seeking to stem the flow through Greece, where authorities are struggling to contain the crossings by boat from Turkey.

Belgium's interior minister, Jan Jambon, says that Greece "has to do what it has to do — namely, controls. And if that is not the case, we need to look closely into that."

EU figures show more than 2,000 people are still arriving daily.