The European Union plans to hold a summit with Turkey to discuss how to tackle the migration crisis, German Chancellor Angela Merkel said at the end of an EU meeting in Malta on Thursday.

The executive European Commission, whose deputy chief Frans Timmermans is leading negotiations with Ankara on joint measures to cut the numbers of Syrian refugees and other migrants leaving Turkey, put forward next Sunday, Nov. 22, for a Brussels summit, officials said. However, leaders were debating optio...