- Austin explosion may have been triggered by tripwire, police sayCNN
- Austin explosions: Police investigating blasts ask residents to stay insideNBCNews.com
- A Fourth Explosion In Austin May Have Been Triggered By A Trip Wire, Police SayBuzzFeed News
- Fourth explosion this month injures two; this time in Southwest AustinAustin American-Statesman
- Fourth Austin package explosion this month possibly detonated by tripwire, leaving 2 injured, police sayWashington Post