Authorities in Kosovo and Bosnia and Herzegovina detain more people suspected of ties to violent extremist organisations.
Participants in foreign conflicts can receive jail sentences of at least five years.
The proposed law, which would be supported by a loan from the World Bank, is being considered by Parliament. In other business news: optimism grows for the economy's future in southeast Europe.
Regional officials say the recent personnel changes in the EU will have a positive impact on their countries' relationship with Brussels.
A new EU-funded project will help Romania to develop medical technologies and improve its health care system.