food truck arrived infront of Italians and offered sandwhich with "special sauce"

all died

https://www.iltalehti.fi/terveysuutiset/a/40bf43f4-2bcd-4235-a3cd-92a97f90be8b

it was in Calabria, Italy

sandwhich was made from sausage and vegatables ontop of white bread
nothing was visibly wrong and it didnt taste funny

they got food poisoning 12-36 hours later and died in about 2-3 days

it was reported because there have been 20 similar cases in italy in 2 weeks altough only these 4 people died