At least 15 people, including 10 militants were killed in an attack on a security check post Sunday morning in Pakistan\'s bordering tribal agency of Khyber, said officials. Suspected Taliban militants attacked a security check post, jointly manned by tribal peace force and militia force, in Barra district of the agency, tribal political administration sources told KUNA.They said the militants used rockets and heavy weapons, adding that two vehicles were also damaged in the attack. Sources said the attack left four personnel killed and wounded about five others. The tribal and militia forces launched a retaliatory operation against the militants and killed at least 10 of them, said sources.