Sensitive Agencies and FC personnel conducted an operation in Brewery area of the provincial capital on Tuesday and arrested three suspected terrorists. According to FC spokesman, the operation was launched on intelligence report that some suspects were hiding in the area. He said arms were also recovered from the suspects. Although the spokesman did not give further details, but security is at its highest alert in Quetta which in the past had seen sectarian killings. The security is exceptionally high in the city to ensure smooth passage of Ashura Majalis and processions.