Breaking: Explosion reported at Goodwill in Austin

According to early reports on social media Tuesday, there has been an explosion at or near a Goodwill store in Austin, Texas, where several bombs have been sent through packages in the past weeks.

The official Austin-Travis County Emergency Medical Services social media account announced that they were responding to an explosion.

"Reported explosion with reports of one patient injured," the account tweeted. "Unknown severity of injuries at this time. Avoid the area and expect closures."

Later, they added that they were transporting a male in his 30s, "with potentially serious, not expected to be life threatening, injuries to St Davids South Austin."

MSNBC reports that the neighborhood is being evacuated.

VIDEO: First responders arrive at Brodie/Slaugher scene. Brodie completely shut down in both directions. #AustinBombings pic.twitter.com/1ZMR93gFIM

— MelanieTorre (@melanietorre) March 21, 2018

UPDATE 9:30 p.m. EST:

Austin police now say that the explosion was not caused by a package, but by an "incendiary device." Because of this, they say, "we have no reason to believe this incident is related to previous package bombs."

Original story continues below.

Earlier Tuesday, a package exploded at a FedEx office, and investigators believe they found another package that had not yet exploded. All appear to be related to the same mail bomb attacker that is targeting residents of Austin, Texas.

More on this developing story as it becomes available.