Radical militant group Kurdistan Freedom Hawks (TAK) has claimed responsibility for the blast in Ankara, which killed 37 people last Sunday.
TAK’s statement was posted on its own website. The group is an offshoot of the Kurdistan Workers' Party (PKK).
According to the statement, the Turkish Republic is "fascist" and the blast was a reaction to Turkish military operations in the southeast of the country where many Kurds live.
Kurdistan Freedom Hawks has emphasized that the blast was directed against security forces, not civilians.
At the same time, TAK warns that if the Turkish government does not change its policy, the group will carry out new attacks and new casualties will be inevitable.
On March 13, a suicide bomber detonated a car bomb in Ankara. This happened in the center of the city where two main transport lines intersect.
According to the Turkish authorities, the suicide attack killed 37 people while several dozen victims remain in hospitals.
In February, Ankara experienced a similar explosion, which killed about 30 people. TAK claimed responsibility for it too.
The Turkish authorities have accused the PKK of the Sunday’s blast.