SULAIMANIYA, Iraq - Iraqi Kurdistan's internal security forces, Asayish, have raided the offices of Kurdish private broadcaster NRT in the province of Sulaimaniya and taken the channel off the air, its head told Reuters on Tuesday. The channel was not accessible. Earlier, local officials said three people had been killed and more than 80 wounded when Kurdish protesters, angered by years of austerity and unpaid public-sector salaries, took part in a second day of violent unrest amid tensions with Baghdad.