June 24, 2020 | 7:42am

A 3-year-old girl was injured when illegal fireworks blasted into her bedroom in the Bronx early Wednesday morning, sources told The Post.

It was just before 12:15 a.m. when the fireworks shot through the sixth-floor bedroom window of the child’s Anderson Street apartment building, near West 167th Street, sources said.

Just before the blast, a group of four or five men were seen lighting the fireworks on the street, according to the sources.

The girl was transferred to NewYork-Presbyterian/Columbia Hospital with minor burns to her left arm.

Illegal firework activity has skyrocketed in the city this past month, prompting Mayor de Blasio to announce a crackdown — that targets the sellers, not the users.