A percussion bomb exploded near the Turkish Prime Ministry's office in the capital Ankara early on Monday.
The explosion reportedly took place about an hour before a cabinet meeting.
One person was slightly injured. No more details are reported.
The explosion comes after a bomb blast wounded 15 policemen and one civilian near the ruling party offices in İstanbul on Thursday. No one has claimed that attack.
Bomb experts, wearing protective gear, are searching the area to make sure that no other bomb has been placed.
Photo by Reuters news agency.