HERAT - A gunman wearing an Afghan uniform turned his weapon against foreign trainers working for NATO in the western province of Herat on Sunday, killing three, in a grim 24 hours for the coalition which also saw five NATO soldiers killed.

The latest rogue shooting by an Afghan in a police or army uniform happened at a regional training center in the relatively peaceful western province near Afghanistan's border with Iran, which is normally patrolled by Italian forces.

"An individual wearing an Afghan National Security Force uniform turned his weapon against ISAF contracted civilian employees in western Afghanistan today, killing three," a spokesman for the NATO-led coalition said, adding that an unknown number of other people had been wounded.

"Also, one insurgent was killed in the engagement and we are still looking for one more shooter," he said.

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