BAGHDAD: Iraqi officials say gunmen have raided two family homes in a northern Iraqi city, killing six people.

Provincial police officials say the raids took place yesterday in the city of Mosul. In the first attack, four people were killed, including a husband and wife. In the second house, gunmen killed two men.

Local authorities say they are investigating the two attacks. Mosul was once an Al-Qaeda stronghold. It is about 360 kilometers (225 miles) north of Baghdad. The attacks came two days after a relentless assault across the country killed at least 93 people and wounded many more in what was the second deadliest day in Iraq since US troops left in December.