BAGHDAD - Fourteen Iraqis, both men and women, were machine-gunned to death Thursday while travelling in a minibus south of Baghdad, local police said.
The attack took place on a small road in Latifiyah, 40 kilometres (25 miles) south of the capital.
Those killed were Shiites from nearby Mahmudiyah who reportedly left their home Thursday morning and whose bodies were found later in the day.
There was no immediate indication as to who was responsible for the attack.
Latifiyah is located in the so-called 'triangle of death', a restive mixed Sunni-Shiite area where murders are rife.
Earlier, a suicide bomber blew himself up next to a police patrol car, killing four policemen and wounding five, an interior ministry official said.
The attack took place near an interior ministry entrance.
The Al-Kindi hospital said five wounded policemen, including an officer, were taken there for treatment.
Meanwhile, US fighter jets dropped two 500-pound bombs on suspected insurgents in a northern Iraq town, killing 10, the US military said in a statement on Thursday.
The F-16 jets were on a routine patrol near Hawija, southwest of the northern oil hub of Kirkuk on Tuesday when they noticed suspicious activity.
"The pilots saw three men digging holes near the road emplacing an IED," said the statement, using the military's acronym for roadside bomb.
"The men fled the area in a vehicle when they heard the aircraft flying overhead and were soon joined by a second vehicle."
The vehicles attempted to hide "by parking between two buildings" in a nearby village, but they were killed when the jets dropped their bombs - "While causing only minimal damage to the surrounding structures", it said.
A follow up US army patrol destroyed the roadside bomb and performed a search of the village, seizing assault rifles, a machine gun, ammunition and bombmaking materials.