An explosion has been heard near a government in building in a Kurdish-dominated town in southern Turkey, local media reported.

The Dogan news agency said several ambulances had rushed to the scene but it is currently unknown whether they are any casualties.

The Hurriyet news website said the blast, in the Mardin district of Derik, was caused by a bomb. NTV reported that some people were wounded, with the district governor, Fatih Safiturk slightly hurt.

Turkey's Ihlas news agency said the Kurdistan Workers Party (PKK) were responsible for the blasts as part of a renewed insurgency following the decline in relations with the Turkish government last year.

There has been no immediate confirmation of the cause of the blast.

The PKK have carried multiple terror attacks across Turkey over the past year as the situation has deteriorated in which thousands of militants, security force members and civilians have been killed.

A two-year ceasefire with President Recep Tayyip Erdogan's government broke down last year and the group has been targeted as part of a wider crackdown on dissent following a failed coup in July.

In pictures: Turkey launches operation in Syria Show all 9 1 /9 In pictures: Turkey launches operation in Syria In pictures: Turkey launches operation in Syria Turkish tanks driving to the Syrian-Turkish border town of Jarabulus yesterday AFP/Getty In pictures: Turkey launches operation in Syria Turkish-backed gather on the outskirts of Jarabulus, Syria, ahead of an offensive on 24 August 2016 Reuters In pictures: Turkey launches operation in Syria Turkish army tanks make their way towards the Syrian border town of Jarabulus, Syria August 24, 2016 Reuters In pictures: Turkey launches operation in Syria Turkish soldiers return from Syria to Turkey with tanks after a military operation at the Syrian border as part of their offensive against the Islamic State (IS) militant group in Syria, Karkamis district of Gaziantep, Turkey, 25 August 2016 EPA In pictures: Turkey launches operation in Syria Turkish army tanks and Turkey-backed Syrian opposition forces move toward the Syrian border as pictured from Karkamis, Turkey, AP In pictures: Turkey launches operation in Syria Turkish tanks on their way to the Turkish-Syria border during an operation against Isis on 24 August 2016 EPA In pictures: Turkey launches operation in Syria Syrian opposition fighters being transported during preparations to enter Jarabulus in Karkamis, Turkey, on 24 August 2016. EPA In pictures: Turkey launches operation in Syria An air strike hitting Isis-controlled territory near Jarabulus, near the Turkish border, on 24 August 2016. EPA In pictures: Turkey launches operation in Syria A Turkish army tank and an armoured vehicle stationed near the border with Syria. Turkish media reports say Turkish artillery has launched new strikes at Isis targets across the border AP

President Erdogan has said he does not care about being labelled a dictator after his brutal crackdown has seen hundreds arrested and thousands more sacked for alleged links to the Gullenist movement which he blames for the attempted coup.

He accused Europe of "abetting terrorism" by condemning his crackdown on the PKK.

Meanwhile, terror group Isis have stepped up their attacks on the country in retaliation for strikes against their position over the border in Syria.

In June, an Isis attack at Istanbul's Ataturk Airport left 41 dead and a further 230 wounded as three bombers opened fire with AK-47s before detonating suicide vests.