He said the Kurdistan Workers Party (PKK) was responsible for the attack, which occurred around 10:40 p.m., and that two women who carried out the attacks died during the explosions.
The two attackers first shot at the police officer on duty and later detonated bombs that were attached to them, he said.
The attack took place in the Mezitli district of Mersin, state-owned Anadolu Agency said.
The PKK launched an insurgency for Kurdish rights against the Turkish state in 1984 and more than 40,000 people have been killed in the conflict.
Reporter's code: 50101