BAGHDAD - Attacks in Iraq on Sunday killed at least six people, among them a police brigadier general and two soldiers, security and medical officials said. Gunmen using silenced weapons opened fire on a vehicle carrying police Brigadier General Nayef Abdul Razzaq, head of the interior ministry’s complaints office, in the Al-Yarmuk area of west Baghdad, killing him and his driver, an interior ministry official said. A medical source at Al-Yarmuk hospital said the facility received the body of the driver, while Razzaq died within minutes of arriving. In Sadr City in north Baghdad, a magnetic “sticky bomb” attached to a minibus killed two people and wounded six, the interior ministry official said.