ABHA: Citizens here are concerned that teenagers, who are gathering at a flyover on the Abha-Khamis Mushayt Road during working hours, are a security threat to residents. They said the teenagers sit in the walking area and use the billboards to stay out of public sight. Asir Mayoralty constructed the flyover to allow vocational institute trainees and other pedestrians to cross the road safely during peak traffic. Major Abdullah Al-Shathan, Police spokesman in Asir, said the security authorities consider this a serious matter and will ensure the teenagers are removed.