Follow CBSDFW.COM: Facebook | Twitter

PLANO (CBS11) – A suspicious fire at a Plano apartment building has turned into an arson and attempted murder investigation.

READ MORE: Robust Mosquito Season Predicted For North Texas

According to court documents, a mother may have set the fire to cover up the severe abuse of her son.

It happened at the Preston Creek Apartments on Preston Road Wednesday morning.

READ MORE: Juneteenth Being Celebrated At Various Events Throughout North Texas Saturday

The mother died in the fire.

Her 5-year-old son survived, but investigators said his throat was slashed and his skull was fractured.

MORE NEWS: Water Main Break Impacting Traffic In Downtown Fort Worth

(©2017 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)