Findings point to Islamic State (IS) responsibility for a suicide bomb attack on Istanbul's main international airport that killed 36 people and wounded many more on Tuesday, Turkish Prime Minister Binali Yildirim said.

"According to assessments so far, 36 people have lost their lives and there were also many wounded," Yildirim told reporters at the site of the attack on Europe's third-busiest airport.

He also said that a small number of the wounded were seriously injured.