The city has been on edge after the attacks, and hundreds of police have been deployed to the area to investigate the blasts. The public were being urged to avoid the area.
The earlier blasts — involving package bombs and a tripwire — were all related. They began in early March, with police confirming four attacks in Austin and one in Schertz, 104 km south of the state capital.
The first exploded on March 2, killing Anthony Stephan House, 29, at his home. On March 13, Draylen William Mason, 17, was killed and his mother injured when he brought a package inside his home from the doorstep. Hours later, a 75-year-old Hispanic woman, was injured by another package. On March 18, a device injured two men who may have set off a tripwire while walking along a street in the city, police said. On March 20, a parcel bomb exploded at a FedEx depot in Schertz, injuring one person. Police said the parcel had been due to be shipped to Austin.
Federal Bureau of Investigation officials said another package at a separate FedEx facility in the area “was disrupted by law enforcement” on Tuesday.
