AUSTIN, Texas — 10:45 a.m. update:

Austin police held a press briefing about 10:45 a.m. Monday in order to update the investigation. According to police, a package containing an explosive device was left on the doorstep of the home. The package was picked up by a teen male, who brought that package into the home and opened it in the kitchen.

An explosion occurred in the kitchen, killing the teen, who may have been 17, and injured an adult woman. It's not believed the woman's injuries are life-threatening.

Police said the incident is being investigated as a homicide. The United States Postal Service checked records and determined the package was not delivered by USPS or other services. Police said there are similarities to an incident on March 2 in North Austin that claimed a person's life. Both incidents involved African-American families, and police said a hate crime could not be ruled out.

Police would not elaborate on the similarities between the incidents or disclose what kind of explosive device detonated. Austin police urged people not to open unidentitied packages left at their homes if they are unexpected. Rather, police said, you should call 911.

Original story:

Austin police are responding to reports of a package explosion in East Austin where one teen male has died and a woman in her 40s is seriously injured, police confirmed.

Cynthia Burdett lives just across from this morning's house explosion in East #Austin. She says teen victim was heavily involved in community service and very giving. ATF, FBI and other agencies investigating. pic.twitter.com/r5wtO9TJYd — Jeff Stensland (@JeffStensland) March 12, 2018 <_script charset="utf-8" src="https://platform.twitter.com/widgets.js">

The first call came in at approximately 6:50 a.m. Monday morning at 4800 block of Oldfort Hill Drive near East Martin Luther King Jr. Boulevard, between 183 and Springdale Road.

Multiple #ATCEMS @Austin_Police @AustinFireInfo onscene of a reported explosion at 4800 block of Oldfort Hill Dr (06:44); 2 pts identified thus far with Medics obtaining DOS pronouncement of late teens Male & ~40's F txpt'd to DSMC w/serious potentially life threat inj's. MTF... — ATCEMS (@ATCEMS) March 12, 2018 <_script charset="utf-8" src="https://platform.twitter.com/widgets.js">

RELATED | Man killed in North Austin 'package' explosion

Intially two people were reported injured, but at around 7 a.m., it changed to one dead at the scene.

Just a week ago, a similar incident occurred in North Austin, killing one man. A "package" exploded on the front porch of a house on the 1100 block of Haverford Drive on March 2, around 6:55 a.m. That incident is still under investigation by the Austin Police Department, the FBI and the ATF.

This is a developing story. Refresh this story for updates as they become available.