The European Commission will unveil plans Tuesday to choke off financing of terrorist groups, with France pushing hard for a crackdown after a series of deadly attacks.
Prime Minister David Cameron was to meet EU president Donald Tusk at Downing Street on Sunday as negotiations reach a decisive point ahead of a referendum on whether Britain should leave the bloc.
The European Commission said Tuesday it may eventually allow member states of the passport-free Schengen zone to reintroduce border checks for up to two years to cope with the migration crisis.
Belgian investigators believe explosives used in the attacks in Paris in November may have been made in an apartment in Brussels that was rented under a false name and where a fingerprint of a key fugitive was found.
Belgian police detained six more people over an alleged New Year attack plot in Brussels and arrested a 10th suspect over last month's jihadist massacre in Paris.