JERICHO - School bus drivers across the state and on Long Island are being instructed to be extra alert after officials say an apparent terror threat was made against them.

State police are investigating an anonymous email sent to 28 lawmakers in Albany last Friday, warning of a mass shooting like the one that targeted Rep. Gabrielle Giffords (D-Ariz.) in January.

Today, News 12 Long Island has learned the email also contained the passage:

"If we attack a school bus full of kids, it may have no effect on the hardened criminals who rule Albany, but it will put the public in an uproar. Our goal is to create anarchy. You'll have to kill us to stop us."

Law enforcement sources familiar with the investigation point out that the six-paragraph email was addressed to lawmakers, and since it only made one indirect mention of a school bus attack, they believe the sender is someone disgruntled by the Albany budget process.

The state Education Department sent a letter today to school superintendents, informing them that "law enforcement authorities are not considering it a credible threat at this time."

Still, as a precaution, Long Island school bus drivers were alerted about the threat yesterday and told to report any suspicious activity along their bus routes.