Turkish police have carried out raids against suspected militants from so-called Islamic State after the deadly attack on Istanbul's Ataturk airport. At least 13 suspects were detained in the raids in Istanbul, with more in the western coastal city of Izmir, - BBC reports.

Turkey believes IS was behind Tuesday's suicide gun and bomb attack that left 42 people dead and more than 230 injured. More details of the victims have emerged, many of them airport workers.

A Turkish official told Agence France-Presse: "Earlier today, the police raided 16 locations to detain 13 IS suspects, including three foreign nationals." Turkish media said counter-terrorism police had raided several areas of Istanbul - including Pendik, Basaksehir and Sultanbeyli.

Arrests were also reported in Izmir, where at least nine people were detained, accused of financing, recruiting and providing logistical support to so-called Islamic State.
Separately, Turkish media reported that security forces had killed two suspected Islamic State militants on the Syrian border last Saturday. They said one was planning an attack on the capital Ankara or the city of Adana. No-one has yet said they carried out the airport attack on Tuesday evening.

Turkish media have said the three attackers came from Uzbekistan, Kyrgyzstan and the Caucasus region of Russia, but there has been no official comment. Turkish Prime Minister Binali Yildirim has said again that "our thoughts on those responsible for the attack lean towards Islamic State".

Turkish President Recep Tayyip Erdogan declared Wednesday a national day of mourning and said the attack should serve as a turning point in the global fight against militant groups.