Pakistani forces backed by helicopter gunships today killed 23 militants during fierce clashes and destroyed three hideouts in the volatile Orakzai tribal area in the country's northwest. <br/><br/>According to official sources, at least 12 militants died in the clashes that took place early today in Sanghra, Saam and Nakhtaro Ghar areas, where troops have launched a fresh offensive to flush out pro-Taliban militants from the region. <br/><br/>The sources said, eleven more militants were killed in fierce clashes in Sherin Darra area, which was captured by the troops. <br/><br/> Security officials have claimed that about 300 militants have been killed since the operation was launched in Orakzai Agency to flush out pro-Taliban militants. About a dozen security personnel have also died in the fighting.