A warning before detonation so it has an element of what I'm looking for but not exactly.
WikipediaOn December 25, 2020, Anthony Quinn Warner detonated a recreational vehicle (RV) bomb in downtown Nashville, Tennessee, United States, killing himself, injuring eight people and damaging dozens of buildings in the surrounding area. It took place at 166 Second Avenue North between Church Street and...
https://en.m.wikipedia.org/wiki/2020_Nashville_bombing[en.m.wikipedia.org/wiki/2020_Nashville_bombing]