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A teenager was killed and at least two women were seriously injured after a pair of explosions rocked homes in Austin Monday.

The blasts came just two weeks after a another blast, which authorities said is linked to at least one of Monday's incidents.

Austin Police Chief Brian Manley told Martha MacCallum on "The Story" that there is an elevated skill level being shown by the culprit in building the explosives.

Manley added that there is a "level of attention [from federal authorities] we've not seen before" in Austin, from those who are assisting local police in the investigation.

Austin Police said they received a call about the first explosion around 6:45 a.m. local time after a 17-year-old resident found a package on the front porch, brought it inside and opened it in the kitchen, where it exploded, killing the teen and seriously injuring a woman in her 40s.

A separate explosion was reported around 11:49 a.m. in a different neighborhood, leaving a woman in her 70s with "life-threatening" injuries, according to officials.

Authorities don't believe the packages came from a delivery through the U.S. Postal Service or private mail carriers.

Austin Police Chief Brian Manley said the first incident on Monday morning bore a resemblance to the March 2 explosion that killed one man.

There is no known motive at this time, but Manley said both blasts took place at homes of African-American residents so authorities "cannot rule out that a hate crime is at the core of this."

Police are also asking residents in the Austin area if they do find a package on their doorstep that they were not expecting, to not open it and call 911 to have authorities examine it.

Watch the report from "Outnumbered Overtime" above, and stay with Fox News Channel and FoxNews.com for the latest breaking news.


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