A suicide car bomber has killed two policemen in south-eastern Turkey.

The bomb went off outside police headquarters in the south-eastern city of Gaziantep, near the Syria border.

Around 23 people, some of them civilians, were injured in the early-morning explosion, which was heard several miles away.

Gaziantep, which is near the Syrian border, is known to have several IS cells.

Police later raided the home of a suspected member of the so-called Islamic State group, who is believed to have carried out the attack. His father has been detained for DNA testing.

Turkey has been hit by a series of suicide bombings in Ankara, Istanbul and Bursa over the past year, with responsibility linked either to Kurdish militants or IS.

The European Union will this week drive forward a plan to allow Turks visa-free travel throughout the EU as a reward for having reduced a flood of refugees and migrants into Europe to a trickle.

The Irish Government and European Parliament are expected to be asked to approve the deal by the end of June.