Eight people were arrested after a shootout at Istanbul's Caglayan courthouse on Thursday.
The gunbattle broke out between rival sides in a murder trial which was ongoing at the courthouse.
An injured person was taken to hospital by medical teams. A child was also taken to hospital, but it was unclear if it was a case of shock or physical injury.
Police are searching for anyone else involved in the fracas.
Caglayan courthouse, one of the largest in Turkey, was at the center of a major incident in March 2015 when members of the leftist DHKP-C terror group seized and killed a prosecutor, Mehmet Selim Kiraz.
Kiraz, 46, was taken hostage in the Çaglayan complex but was shot dead by his captors after six hours of negotiations.
The two hostage-takers, who released photographs of Kiraz with a pistol pointed at his head during the siege, were killed by the security forces.
