Two attackers detonated a bomb in front of Turkish government buildings in Ankara, leaving both of them dead and two police officers wounded, and a Kurdish militant group claimed responsibility for the attack.

Authorities called it the first terrorist attack in the capital in years.

CCTV footage obtained by Reuters showed a vehicle pulling up to the Interior Ministry’s main gate on Sunday morning and one of its occupants quickly walking toward the building before being engulfed in an explosion, while the other remains on the street.

The blast killed one of the attackers and authorities “neutralised”, or killed, the other, the interior minister said of the incident that rattled a central district that is home to ministerial buildings and nearby parliament.

In a speech at the opening of a new parliamentary session hours later, President Tayyip Erdogan called the morning attack “the latest attempt” to inflict terror on Turks.

“Those who threaten the peace and security of citizens have not achieved their goals and never will,” he said.

The ANF News website, which is close to the Kurdistan Workers Party (PKK) militant group, said a group called the ‘Immortals Battalion’ had carried out the attack, citing a PKK statement.

The statement described the bombing as a ‘suicide attack’ planned to coincide with the opening of parliament and carried out by “a team of ours linked to our Immortals Battalion”.

The PKK is designated as a terrorist organisation by Turkey, the United States and the European Union. It launched an insurgency in southeast Turkey in 1984 and more than 40,000 people have been killed in the conflict.

The bomb on Ataturk Boulevard was the first in Ankara since 2016, when a spate of deadly attacks gripped the country.

Video afterward showed a Renault cargo vehicle parked there, windows shattered and doors open, amid debris and surrounded by soldiers, ambulances, fire trucks and armoured vehicles.

A senior Turkish official told Reuters the attackers had hijacked the vehicle and killed its driver in Kayseri, a city 260km southeast of Ankara, before carrying out the attack. One of the injured officers suffered shrapnel injuries, he added.

“Two terrorists came with a light commercial vehicle in front of the entrance gate of the General Directorate of Security of our Ministry of Internal Affairs and carried out a bomb attack,” Ali Yerlikaya, the interior minister, said on social media platform X.

He added the two officers were slightly injured in the incident at 9.30am local time.

“Our struggle will continue until the last terrorist is neutralised,” he said, echoing condemnation by other Turkish officials.

Police said they carried out controlled explosions for “suspicious package incidents” in other parts of Ankara.

Authorities did not identify any specific militant group.

The incident comes almost a year after six people were killed and 81 wounded in an explosion in a busy pedestrian street in central Istanbul. Turkey blamed Kurdish militants for that.

During a series of bloody incidents in 2015 and 2016, Kurdish militants, Islamic State and other groups either claimed or were blamed for several attacks in major Turkish cities. In March 2016, 37 people were killed in Ankara when a bomb-laden car exploded at a crowded central transport hub.

—AAP