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Texas explosions: FBI investigating new blast at FedEx plant Texas explosions: FBI investigating new blast at FedEx plant
(35 minutes later)
US authorities suspect that a parcel bomb that exploded at a FedEx depot in Texas on Tuesday is connected to a serial bomber in the state. US authorities are investigating whether a parcel bomb that exploded at a FedEx depot in Texas on Tuesday is connected to a suspected serial bomber.
The incident occurred in the early hours in Schertz, 65 miles (104km) south of Austin, where four bombs have killed two people in recent weeks. The incident occurred at 00:30 (05:30 GMT) in Schertz, 65 miles (104km) south of Austin, where four bombs have killed two people in recent weeks.
No injuries have been reported in the Schertz blast. One staff member at the depot sustained light injuries, police said.
"We suspect it is related to our investigation," FBI spokeswoman Michelle Lee told CNN. FBI spokeswoman Michelle Lee told CNN the agency believed the blast could be connected to the four previous attacks.
Three of the four previous devices planted in Austin were hidden in parcels left at residential addresses. Police said another was probably activated by a tripwire, triggered by two men walking along a street in south-west Austin. Local media, citing law enforcement sources, reported that the package that detonated in Schertz was addressed to Austin, and had been packed with metal to create shrapnel.
The first exploded on 2 March, killing Anthony Stephan House, 29, at his home. Three of the four previous devices were hidden in parcels left at residential addresses in Austin. Police said another was probably activated by a tripwire, tripped by two men walking along a street in south-west Austin.
Two more bombs exploded 10 days later. Draylen William Mason, 17, was killed and his mother was critically injured when he brought a package inside his home. The first device exploded on 2 March, killing Anthony Stephan House, 29, at his home.
Two more bombs exploded 10 days later. Draylen William Mason, 17, was killed and his mother was critically injured when he brought a package inside his home from the doorstep.
Hours later, a 75-year-old Hispanic woman, who has not been named, was injured by another package.Hours later, a 75-year-old Hispanic woman, who has not been named, was injured by another package.
Investigators initially said that they were looking at a possible racial motivation for the attacks, which killed two black men and injured a Hispanic woman, but the tripwire device on Sunday night appeared to be indiscriminate and injured two white men. Investigators initially said that they were looking at a possible racial motivation for the attacks, which had killed two black men and injured a Hispanic woman, but the tripwire device, detonated on Sunday night, appeared to be indiscriminate and injured two white men.
"With this tripwire, this changes things," said Christopher Combs, the special agent in charge of the FBI's San Antonio office."With this tripwire, this changes things," said Christopher Combs, the special agent in charge of the FBI's San Antonio office.
"It's more sophisticated. It's not targeted to individuals. We're very concerned that with tripwires, a child could be walking down the sidewalk and hit something.""It's more sophisticated. It's not targeted to individuals. We're very concerned that with tripwires, a child could be walking down the sidewalk and hit something."
Mr Combs said more than 350 special agents were working on the investigation, calling it an "unprecedented response." Mr Combs said more than 350 FBI special agents had been drafted in to work on the investigation, calling it an "unprecedented response."
Austin police have offered a $100,000 (£712,000) reward for information. Fred Milanowski, the special agent in charge of the Bureau of Alcohol, Tobacco, Firearms and Explosives in Houston, said the agency had a "high degree of confidence that the same individual built all these devices".
Texas Governor Greg Abbott has offered an additional $15,000. The FBI made a rare public appeal to the bomber to get in touch. "We would really like the bomber to contact us so we can talk to him," Mr Combs said.
Austin police have offered a $100,000 (£71,340) reward for information, and Texas Governor Greg Abbott has offered an additional $15,000.
Residents in Austin, a city of 974,000, have been asked to look out for suspicious packages.