MINNEAPOLIS —

Emergency crews responded to a shooting at Annunciation Catholic School in Minneapolis on Wednesday morning.

Here's what we know and don't know about the shooting: Advertisement

What we know:

Two children, ages 8 and 10, were killed, according to Minneapolis Police chief Brian O'Hara.

Another 17 people were injured, two critically; 14 of them are children.

The shooter, a man in his early 20s, died from a self-inflicted gunshot wound.

The Annunciation Catholic School serves children from pre-kindergarten through eighth grade.

Multiple agencies responded to the scene, including the FBI.

Video below: Minneapolis Mayor Jacob Frey on school shooting: 'Don't say thoughts and prayers'

What we don't know:

The shooter has not yet been identified and his possible connecti

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