Police in Iraq have found 14 bodies in northern Baghdad, including some that were blindfolded and shot execution-style.

Reports say the victims all appeared to be Iraqis. 

Separately, at least seven Iraqi policemen were killed Friday and several others wounded in a bomb attack in the northern town of Tikrit.

An Iraqi Defense Ministry official said the attack occurred at a checkpoint in the city, about 130 kilometers north of Baghdad. 

The blast, which targeted a minibus carrying police, is the latest attack in a wave of insurgent violence that followed last week's announcement of a partial cabinet list.

On Thursday, at least 27 people were killed in a series of attacks against the country's military and police forces.