TWO Gauteng public order policing unit officers have been arrested after an armed robbery at a house in Bryanston. Five robbers tied up the occupants and ransacked the house, taking three cell phones, a camera and a box containing about R300 000. Johannesburg flying squad policemen stopped their vehicle on the N1 highway and arrested four men, including a 30-year-old Soweto police sergeant and a 27-year-old West Rand police constable. They will appear in court this week.