INDIANAPOLIS (AP) — Indiana’s fire marshal says breaking state fireworks laws could lead to a stiff fine or even jail time if someone is injured.

Fire Marshal Jim Greeson issued the advice Wednesday in advance of the Fourth of July holiday, which is more than a week away.

Greeson says setting off fireworks without a property owner’s permission is prohibited. And he adds those who cause damage might have to pay for it.

State law also bars anyone under the age of 18 from having fireworks unless they are accompanied by an adult.

Fireworks can be used from 9 a.m. until two hours after sunset in the days leading up to July 4, though local restrictions may limit that further.