A suspect linked to a series of deadly parcel bombings in Texas has died in an explosion near a highway in the state capital Austin, it has been reported.
U.S. media claim the as-yet-unidentified white male, aged 24, died when he set off a device in his vehicle off an interstate road in the Round Rock area of Austin.
The security forces are now examining the scene.
Austin has seen four parcel bombings; a fifth explosion linked to the case took place in the town of Schertz, over 100 kilometers (62 miles) south.
Between March 2 and March 20, two people were killed and six injured as they either opened the booby-trapped parcels or, in once case, set off a tripwire.
The city has been swamped by police and other branches of the security services in the hunt for the bomber.
Austin Police Department gave a briefing to reporters, as an FBI investigation continues.
No motive for the attacks has yet been identified.
— Austin Police Dept (@Austin_Police) March 21, 2018