FBI Probes Package Blast at FedEx Facility in Texas Which Injured One

The case is already the fifth explosion that went off in Texas in three weeks, with police suspecting that the same serial bomber is behind four previous blasts.

One employee was injured as a package with nails and shrapnel bound for Austin, Texas exploded at the FedEx facility on Tuesday, according to the local fire department.

READ MORE: Fourth Explosion in Austin: Two Men Seriously Hurt by Tripwire Blast (VIDEO)

According to the ABC News service, the incident took place at a FedEx distribution facility in Schertz, Texas, just after midnight. The employee who was injured was not hospitalized.

According to schertz pd
A medium sized package exploded on a conveyer track with metal shrapnel and nails at the fedex ground processing plant in schertz. One person injured from the concussion of of the detonation of the package. #kens5eyewitness pic.twitter.com/uGcl1NddsF

— GENE DE LA CRUZ (@gene78577) March 20, 2018

About to go live at 5:30a on @KENS5 about this FedEx package explosion here in #Schertz, then I'll be live again on twitter with the latest there too. #kens5eyewitness pic.twitter.com/6gAHFtgSTT

— Charlie Cooper (@CharlieKENS5) March 20, 2018

FBI investigators and a bomb squad were reported to come to the scene. No connection has yet been established between the incident and the recent string of explosions in Texas that began on March 2 and already claimed lives of two people.

FBI and several other law enforcement agencies in Schertz investigating an explosion that happened at a FedEx Ground https://t.co/kOnsKIa1XJ

— Charlie Cooper (@CharlieKENS5) March 20, 2018

Late on Monday, two bicyclists were hospitalized with serious but not life-threatening wounds after a similar explosion in Austin which was set off by a tripwire.

Three other instances differ from the latest ones as the packages were found outside the homes and were not delivered by any mail services. In the first week of March, 39-year-old Anthony Stephen House was killed when a package exploded in his home. Authorities at the time described it as an "isolated incident." On March 12, two other parcel explosions took place: the first killed 17-year-old student Draylen Mason while the second explosion critically injured 75-year-old Esperanza Herrera, who was visiting her mother at the time of the incident.

On Monday, Police Chief Brian Manley said that investigators believed the same serial bomber was behind four explosions that went off this month in the city of Austin, Texas.