Four suicide bombers attacked a local television station headquarters north of Baghdad on Monday, killing at least four journalists, police officers said.
Two of the bombers blew themselves up, while security forces killed two others when they stormed the building, the officers said.
At least five people were also wounded in the incident.
The attack on the TV station came after a December 16 assault by militants on the Tikrit city council headquarters, in which a council member and two police were killed.
Signup to our newsletter and follow us on Facebook and Twitter!
Iraq has come in for repeated criticism over the lack of media freedom and the number of unsolved killings of journalists.
With the latest violence, 11 Iraqi journalists have been killed in attacks in less than three months.
Violence in the country has reached a level not seen since 2008, when the country was emerging from a period of brutal sectarian killings.
More than 6,650 people have been killed in Iraq since the beginning of the year, according to AFP figures based on security and medical sources.