A disgruntled computer engineer crashed a small plane onto an IRS building in Austin, Texas Thursday morning, reports the New York Times.
The BBC reports that the man, identified as Joseph Andrew Stack, left behind writings that criticized the government, big business, and particularly the IRS, saying "violence is the only answer." Web postings by Stack indicate he was having problems with the IRS, says the BBC.
Stack is believed to have died in the crash, while one other person is unaccounted for, reports the Times.
The building was engulfed in flames, but only two men were injured, according to the New York Times.
Austin police and Homeland Security Department officials have emphasized that this was an isolated incident and there is no indication of links to terrorism.
