The EU must fulfill pledges to offer Turkey three billion euros ($3.3 billion) a year and visa-free travel for Turks in return for cooperation to stem the flow of migrants, Ankara's ambassador in Brussels said Friday, October 23, the Daily Star reports.

The European Union must also break the stalemate in negotiations for Turkey to join the 28-nation bloc and resume inviting Turkish leaders to EU summits in order to seal a cooperation deal, Ambassador Selim Yenel said.

"It is only operational if the EU delivers on its pledges, the four pledges that they gave," Yenel said in an interview in his Brussels office.

He appeared to suggest it could take months before this would happen.

Just hours after the EU announced with great fanfare last week it had reached a refugee cooperation deal with Turkey, Turkish President Recep Tayyip Erdogan and other officials swiftly dampened expectations.

Erdogan urged Brussels to take Ankara's 10-year bid for EU membership more seriously while his Foreign Minister Feridun Sinirlioglu heaped scorn on the EU's proposals of financial help.

While EU leaders did not specify how much they would give Ankara, they did say the three billion euros demanded by Turkey would be a problem.

But the EU has expressed growing concern about the flow of migrants through Turkey, now the main gateway for Syrians and others fleeing war and poverty in the Middle East and central Asia.