The ministry said the 66-year-old died in the hospital on Tuesday. Ten other people wounded in the attack are still being treated in hospitals, it said.
Also today, police detained three more people suspected of involvement in the bombing, the state-run Anadolu Agency said. Fourteen others were charged in connection with the attack over the weekend.
A Turkey-based Kurdish militant group has claimed responsibility for the February 17 attack, which targeted buses carrying military personnel.