BAGHDAD (Reuters) - An Iraqi man killed and buried his teenaged daughter after learning she had intended to become a suicide bomber for al Qaeda, a security official said on Friday.

Iraqi security forces raided the man’s house in Mandili, 100 km (60 miles) northeast of Baghdad, to search for Shahla Najim al-Anbaky after receiving information that she had ties to the Sunni Islamist militant group.

They arrested her father, Najim Abd al-Anbaky, on Thursday when he confessed he had killed his daughter and buried her body near his house, said Major Ghalib al-Jubouri, a police spokesman in Diyala province.

“He confessed he killed her when he learned she worked for al Qaeda and she wanted to blow herself up,” Jubouri said.

The man guided security forces to his daughter’s grave, he said.

Diyala, a mainly Sunni Arab province with significant Shi’ite and Kurdish populations, has seen some of the worst violence since the U.S.-led invasion in 2003.

In a separate incident, suspected al Qaeda militants bombed the home of a Shi’ite family in a town south of Baghdad on Friday, killing five people.

Three bombs were planted overnight at the home of Mohammed al-Karrafi, a follower of anti-American Shi’ite cleric Moqtada al-Sadr, in Haswa, a religiously mixed town about 50 km (30 miles) south of the Iraqi capital, police said.

“After midnight, two bombs completely destroyed the house of the Sadrist, Mohammed al-Karrafi, killing five people and wounding four others,” said Major General Fadhil Razaq, the chief of police in Babil province. “All the casualties are from the same family.”

The blasts killed Karrafi, his wife, his two sons and a nephew. Two of Karrafi’s brothers and their wives were wounded in the explosions.

Razaq said a third bomb was detonated when security forces reached the scene but no one was hurt.

“We accuse al Qaeda. Al Qaeda is trying to take Iraq back to sectarian conflict by targeting Shi’ite figures,” Razaq add.

Overall violence has fallen in the last two years as the sectarian bloodshed that followed the 2003 U.S.-led invasion fades, but bombings and attacks still occur daily.