Reports say that police are shooting to kill at the royal wedding, so don’t even think about trying to mess with Meghan and Harry’s big day.

Snipers in full military gear are on London’s streets with officers given orders to “do whatever is necessary,” and also to shoot to kill, The Sun reported.

“Operations will have been planned for months,” security expert Will Geddes told the Daily Star. “Police will have mapped the area, established risk profiles and worked out the modus operandi of high-risk groups.” He added: “Police will be looking for a variety of threats,” including ISIS terror threats, stalkers and YouTube pranksters.