Security Forces on Wednesday secured the area of Shingwari in South Waziristan and hoisted the national flag at the mountain top, report said. Meanwhile, fifteen more terrorists were killed during last 24 hours of security forces ongoing operation in the agency while three security personnel including an officer also embraced shahadat and seven were injured in the offensive against Taliban militants, said a handout issued by the ISPR here Wednesday. On Jandola Sararogha axis, security forces are engaged in an intense encounter with terrorists hiding on heights surrounding Kotkai.