ORLANDO, Fla. (AP) — Church bells throughout Orlando were to ring 49 times at noon today, a year after the worst mass shooting in modern U.S. history.

Gov. Rick Scott ordered U.S. flags around Florida to be flown at half-staff, a giant rainbow flag will be unveiled at the Orange County government building, and three separate services at the Pulse nightclub will be held as well as a large evening gathering in the heart of downtown Orlando to honor the 49 patrons massacred at the gay nightclub.

The first service, closed to the public, was to be held for survivors, local officials and club employees, overlapping with the exact time gunman Omar Mateen began firing shots — a little after 2 a.m. on June 12, 2016 — during “Latin Night” at Pulse. It would be followed by another midday service at the nightclub, and an evening gathering in the heart of downtown Orlando. A final, music-filled late-night service is being held at the nightclub.