At least 29 people were killed and over 20 others wounded on Friday in a suicide attack targeting Iraqi security forces and airstrikes on Islamic State militants in the country's western province, a security source said.In one attack, a suicide bomber detonated his explosive-laden military vehicle near allied paramilitary fighters, known as Hashd Shaabi, in the IS-held provincial capital city of Ramadi, leaving nine security members killed and six others wounded, the source told Xinhua on condition of anonymity.Separately, 12 IS militants were killed when US-led coalition aircraft carried out an air strike on two factories of booby trapped vehicles and roadside bombs in the industrial district in the south of the militant-seized city of Fallujah, the source said.Also in the province, the international air craft bombarded a group of IS militants in north of Ramadi, killing five militants and three civilians and wounding 14 others, the source added.The attacks in Anbar province came as Iraqi security forces and allied militias have been fighting for months to retake control of key cities and towns in Iraq's largest province from the extremist IS militants, which seized most of it and tried to advance toward Baghdad.