PESHAWAR At least 42 militants including a key commander were killed and many others got injured during operation of security forces in different areas of Orakzai Agency on Monday. According to details, the jet planes of the security forces pounded militants suspected hideouts in Ghulju and Mamuzai areas, which resulted in killing 18 militants including a key commander. While many militants were killed in a direct clash with security forces in tehsil Ismailzai of Orakzai Agency. A total of 18 militants were also injured in these clashes. Reuters adds: Pakistani jet fighters struck militant hideouts in the Orakzai region Monday, killing 42 insurgents, government and security officials said, the latest in a series of assaults on militants in the countrys northwest. Warplanes attacked militant positions in three areas of the Orakzai region where government forces have intensified attacks in recent weeks after largely clearing Taliban strongholds in other areas. Our jet fighters carried out strikes after information that militants were present in these areas, said one security official, who declined to be identified. A government official, Nauman Khan, said 42 militants were killed and 18 wounded in the air assaults. A Taliban spokesman, Hafiz Saeed, confirmed the attacks but denied any casualties, saying the jet fighters only bombed abandoned houses. The military says several hundred Taliban fighters have been killed in Orakzai in recent weeks but there has been no independent confirmation of that. The Taliban usually dispute the armys accounts of engagements. Our staff reporter from Swat adds: The security forces arrested at least 50 suspected militants during a search operation in Minglor and Jahanabad areas of tehsil Charbagh on Monday. The security forces launched the search operation when they got information about the presence of militants in these areas. The arrested militants were shifted to unknown destination for interrogation. However the sources said that these arrested people were released after proper investigation.