David Ford said: “I welcome the European Commission’s decision to let Bulgaria and Romania join the EU.
“Their accession will strengthen the hand of the EU as a global actor, and this will in turn benefit Northern Ireland as a region.
“This further growth of the EU will help to stabilise the Balkan region and will lead to long-term economic growth across Europe.
“As a member of the European Liberal Democrat and Reform Party, Alliance has constantly supported the widening of the EU. I look forward to Romania and Bulgaria joining subject to fulfilling the accession criteria.”