One person was injured as the Turkish Justice Ministry and the ruling AKP’s headquarters in bomb blast Turkish capital Ankara were both attacked Tuesday.

AKP building was hit by a rocket-propelled grenade on its seventh floor, while two hand grenades were thrown at the ministry’s parking lot, according to local media.

Interior Minister Muammer Guler told the press that no one was wounded at AKP’s headquarters, though a Justice Ministry employee’s spouse was slightly injured in the second attack.

The assault on the AK building shattered windows but did not cause any serious damage, local media report.

Turkish Prime Minister Recep Tayyip Erdogan was out of town at the time on a trip to Denmark.

No group has claimed responsibility for the attacks, though police have reportedly made two arrests already in relation to the incident. Guler stated that a terrorist organization was behind the assault, but would not say which one.

The bombings follow a crackdown on the banned Revolutionary People’s Liberation Party-Front in Turkey. The radical left-wing organization, which calls itself Marxist-Leninist, holds Turkey’s government to be a tool of US and NATO expansion.

In recent years Turkey has also seen terror attacks by Islamic militants as well as an insurgency fighting for autonomy for the country’s Kurdish population.

Turkish officials have been holding negotiations with the Abdullah Ocalan, the imprisoned leader of the Kurdish resistance, with a view to ending a civil conflict that has seen tens of thousands of people killed since 1984. Turkish leaders had warned of the possibility of attacks meant to obstruct a deal.

“We were expecting possible sabotage attempts,” said Justice Minister Sadullah Ergin.

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