The two SAS teams on-scene, Red Team and Blue Team, were ordered to begin their simultaneous assaults, under the codename Operation Nimrod, at 19:23.
Dua tim SAS di-TKP—Tim Merah dan Tim Biru—diperintahkan untuk memulai serangan bersamaan, di bawah nama sandi Operasi Nimrod, pukul 19:23.