TENSE STANDOFFAfter Rasoul's death, the KDP-dominated Regional Security Council accused a PUK security agency of the killing.
It detained six men it identified as operatives involved and issued arrest warrants for another four senior PUK security officials, according to security council statement a week after the attack.
Long-simmering mistrust between the two sides had already deepened this year due to a wave of defections from PUK security agencies.
The senior PUK official told Reuters there had been eight.
"It could've easily turned ugly," the senior PUK official said.