BREAKING: Suspect in Austin bombings dead

BREAKING: Suspect in Austin bombings dead

SCHERTZ, Texas (CBS) - ROUND ROCK, Texas — 

Sources with the Austin Police Department confirm to our CBS Austin affiliate the Austin bombing suspect who terrorized the city since March 2nd is believed to be dead in an incident involving officers along I-35 in Round Rock.

Those five connected bombings killed two people and injured six others.

According to CBS Austin, police were closing in on the suspect when he killed himself by detonating some sort of explosive device, according to our source.

Right now, I-35 is closed while a massive presence of law enforcement, including Austin Police, FBI, and ATF investigators process the scene, which involved an officer firing at the suspect. 

Several helicopters were seen hovering overhead.

I-35 is expected to be closed for 4 to 6 hours during the investigation.

CBS Austin confirms the FedEx Office store on Brodie Lane in South Austin helped investigators zero in on the person of interest who is now reportedly dead.



On Tuesday night, police in Austin responded to reports of another explosion. 



The Austin Police Department tweeted the update around 8 p.m.

So far, there is no word on any injuries being reported. 

Police have an active investigation. 

Shortly after 9 p.m., police provided an update. 



This is a developing story, stay with 7News and for updates. 



Another package exploded in Texas Tuesday morning, this time in the San Antonio area. 

The blast occurred inside a FedEx facility just outside of San Antonio, and officials say it may be connected to the recent package explosions in Austin. 

At least one employee was injured. 

According to CBS News, the FBI says "it is more than possible" the package that went off inside the facility just after midnight is related to the four explosions that occurred earlier this month. 

Officials tell CBS News the package was mailed from Austin and was being sent to Austin. 

The most recent incident in Austin happened Sunday and left two people hurt.

Police say that explosion was more sophisticated, having been triggered along a street by a nearly invisible tripwire.

In all, two people have been killed and four have been injured in the Austin explosions.

Police say they do believe they are dealing with a serial bomber. 

Information adapted from CBS News report.

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