The affected roads are Jalan Tun Abang Haji Openg, Jalan Barrack, Jalan Pearl, Jalan McDougall, Wayang Street and Main Bazaar. The restrictions are linked to a 3.8km Eucharistic procession starting from St Joseph's Cathedral.

Police and Rela personnel will help regulate traffic. The notice describes partial closures during that three-hour period, rather than a full-day shutdown of every road on the list.

For a Sunday evening pickup, delivery or trip through the city centre, check whether the route crosses these streets and leave extra time. Follow directions at the roadblocks; a familiar approach to Main Bazaar or Wayang Street may not be available throughout the procession.