LONDON (Reuters) - British Prime Minister David Cameron will demand stronger powers to curb immigration from the European Union when he meets European Council President Donald Tusk on Sunday, a senior British government source said.
Cameron will insist that a proposed "emergency brake" to deny benefit payments to working migrants could be triggered immediately following Britain's referendum on EU membership, the source said.
Cameron has promised to reform Britain's ties to the EU and hold a public vote on EU membership before the end of 2017. He is hopeful of reaching a reform deal at a summit next month, with a view to holding the referendum as early as possible.
He believes the current EU proposal for a brake of up to four years, reported by Reuters on Thursday, needs significant strengthening and should be applicable for as long as is necessary to solve the underlying problem, the source said.
Cameron also wants any emergency brake to be treated as a stop-gap measure before a permanent mechanism can be established, the source added.
(Reporting by William James; Editing by Catherine Evans)