Texas explosions: Trump vows to catch ‘sick’ bomber

Texas explosions: FBI investigating new blast at FedEx plant

An FBI spokeswoman said the agency suspected a link to previous bombings in the state

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.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.No injuries have been reported in the Schertz blast.”We suspect it is related to our investigation,” FBI spokeswoman Michelle Lee told CNN.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.The first 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.Hours later, a 75-year-old Hispanic woman, who has not been named, was injured by another package. ‘Serial bomber’ suspected in Austin blastsInvestigators 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.”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.”Mr Combs said more than 350 special agents were working on the investigation, calling it an “unprecedented response.” Austin police have offered a $100,000 (£712,000) reward for information.Texas Governor Greg Abbott has offered an additional $15,000.