Istanbul police have arrested 24 people in connection with the attack including 15 foreigners, state-run news agency Anadolu said.
"Earlier today, the police raided 16 locations to detain 22 IS suspects, including three foreign nationals", the official said, speaking on condition of anonymity.
On Friday, consul-generals of 22 countries and European Union representatives held carnations at the scene of the attack during the memorial service held in front of Istanbul Ataturk Airport's International Arrival Terminal.
Three blasts hit the Ataturk Airport on Tuesday, leaving 44 people dead and 239 injured.
One man who owns a real estate agency said one of the men in the picture had lived in his apartment.
Palmers Green Mosque have said they reject the actions of the people involved, which has happened during the Islamic holy month of Ramadan.
Turkish authorities and USA officials believe Islamic State was responsible for Tuesday night's gun and bomb attack on Europe's third-busiest airport, the deadliest in a series of suicide bombings in Turkey this year.
While no one has claimed responsibility for the airport assault, Weiss said the nationalities of the terrorists point to ISIS involvement.
The official said "extensive soft-tissue" damage had complicated efforts to identify the attackers.
The tactic - to enter shooting, and then detonate explosives - is called "inghimasi", and it's being used more and more frequently by terrorists.
Turkey has been plunged into mourning over the carnage at Ataturk airport, the deadliest of several attacks to strike Turkey's biggest city this year.
"Is there anyone to resign?" it asked, pointing out that after the ISIS bombings at Brussels airport and a metro station in March, 3 Belgian ministers offered their resignation. Officials said 94 of the over 230 people reported wounded in the attack were still hospitalized.
Those killed came from all over the world, but most were Turkish, including 10 airport employees, TAV Airports CEO Sani Sener said.
"I think what they do is they carry out these attacks to gain the benefits from it in terms of sending a signal to our Turkish partners. and at the same time not wanting to potentially maybe alienate some of those individuals inside of Turkey that they may still be trying to gain the support of", John Brennan said.
"Thirteen of the victims were foreign including five Saudi Arabian nationals, one Tunisian, one Uzbek, two Iraqis, one Jordanian, one Ukrainian, one Iranian and one person of East Turkestan origin", notes Hurriyet. The assailants raised suspicions of airport security on the day of the attack because they wore winter jackets on a summer day, media reported.
The Islamic State has struck in Turkey before, but has rarely taken credit for those bombings.
Syria and Iraq, where ISIS is rapidly losing ground due to concerted attacks by Western coalition forces, are the areas of "major control". IS has repeatedly threatened Turkey in its propaganda, and the North Atlantic Treaty Organisation member has blamed IS for several major bombings in the past year in both Ankara and Istanbul.
Turkey has been rocked by a series of attacks in the past year blamed on either IS jihadists or Kurdish rebels. At least two Palestinians were also killed.