The terrorists have attacked two Shia Muslim families, martyring 16 people and wounded nine others in south of the Iraqi capital Baghdad, officials say.
On Wednesday, a police officer, who spoke on condition of anonymity, said gunmen late on Tuesday first opened fire on and then planted bombs around the two houses in the town of Latifiyah, about 30 kilometers (20 miles) south of Baghdad.
The officer added that six children, five women and five men lost their lives in the incident.
No group has yet claimed responsibility for the attack.
Last Wednesday, a Shia family was shot dead at home in the same town. Police said that four children, aged between eight and 16, were killed along with their parents and an uncle.
On Tuesday, officials said that a string of car bombings have struck 11 different neighborhoods in the capital Baghdad, killing more than 50 people and injuring scores of others in a span of less than two hours.
Other incidents of violence across Iraq killed about 20 other people and injured dozens more on the same day.
According to the United Nations, a total of 1,057 Iraqis, including 928 civilians, were killed and another 2,326 were wounded in terrorist attacks throughout the country in July — the deadliest month since 2008.
In August, about 800 Iraqis lost their lives in the deadly attacks, a third of which took place in Baghdad.
The Iraqi Ministry of Interior said that militants have launched an open war in Iraq and that they want to push the Middle Eastern country into chaos.
“The country is currently facing an open war from bloodthirsty sectarian forces that aim to plunge the country into chaos,” the Interior Ministry said in a statement issued on July 30.