At least one man was injured on Tuesday night, in yet another reported package explosion in Austin, at a Goodwill store, investigators said.
The victim, in his 30s, suffered injuries that were “potentially serious, not expected to be life threatening,” Fox News reported.
There were no details on what caused the explosion or if it was connected to a string of recent bombings in Texas.
The news of the most recent blast came on a day when two bombs in packages in a different part of Texas caused authorities to widen their investigation.
The two packages, one that exploded at a FedEx sorting center near San Antonio and another later discovered at a location more than an hour away, are connected to four bombings in Austin, CNN quoted law enforcement agencies as saying.
Meanwhile, in Austin, authorities have been combing for clues to the four explosions; the first three of which involved cardboard packages left in front yards or porches.
They weren’t delivered by the US Postal Service or services such as UPS or FedEx, police said.
The three explosions, one on March 2 and two more on March 12 killed or wounded three African-American people and one Hispanic person.
The blasts happened in east Austin areas that predominantly have minority residents, and some in the area expressed concern the attacks might have been racially motivated.