As the European Union's leaders gather in Brussels with British Prime Minister Theresa May to thrash out a conclusive Brexit deal, Opposition leader Adrian Delia, in Brussels for the parallel European People's Party summit, on Thursday insisted that Maltese who do business or have commercial ties with the United Kingdom should know how and under which conditions Brexit was to take place for the sake of peace of mind and business continuity.

Delia said that in spite of Wednesday's vote of confidence in British Prime Minister Theresa May, there remained a number of questions which needed to be answered.

On migration, he said that irregular migration was one of the issues that mostly concerned European citizens. Malta, he said, needed to take a clear position where it continued to safeguard its frontiers and territory.

It was "surreal" how ministers were twisting the truth and conclusions of European, international and Auditor General reports, calling them a certificate of best practice when they all clearly condemned the government, Delia said.

The situation is most concerning for Malta because the damage being done to the country's reputation.

The summit was also attended by EPP President Joseph Daul, chairman Manfred Weber, European Commission President Jean-Claude Juncker, European Council President Donald Tusk, European Parliament President Antonio Tajani, Brexit head negotiator Michel Barnier and other European leaders including German chancellor Angela Merkel.

It started with a minute's silence in remembrance of Tuesday's victims of a shooting in Strasbourg.

Dr Delia was accompanied by the Nationalist Party's international secretary Roselyn Borg Knight.