Story highlights "We were left alone by Western countries," says Turkish President Recep Tayyip Erdogan

He tells CNN's Christiane Amanpour of his frustration with European countries

(CNN) Turkish President Recep Tayyip Erdogan said he believes many European countries have failed to address the significance of the terror threat and have not done enough to fight it.

In an exclusive interview with CNN's Christiane Amanpour in Washington, he criticized those countries for allowing ISIS to spread. The full interview will air at 2 p.m. ET Thursday on CNNI.

Just had exclusive interview with Turkish Pres. Erdogan on #BrusselsAttacks, freedom of the press. Airs tomorrow pic.twitter.com/9anm5N4Dyg — Christiane Amanpour (@camanpour) March 30, 2016

Erdogan accused many European countries of having not met their obligations, especially considering so many jihadists come from Europe.

He said the authorities in Belgium showed "similar negligence" in their handling of Ibrahim El Bakraoui.

The president's office has previously said that Turkish authorities captured and sent the would-be Brussels bomber to the Netherlands last year, and flagged him to Belgian authorities soon afterward.

Read More