The TSA has issued a warning to owners of private aircraft: Extremists may target private US planes: TSA.

WASHINGTON (Reuters) - The Transportation Security Administration has warned aircraft owners and airport managers that Muslim extremists may be targeting private American jets and urged them to boost security.

“On April 13, 2006, a message posted in Arabic on an Internet forum explained how to identify private American jets and urged Muslims to destroy all such aircraft,” the TSA said in an advisory issued on Thursday and obtained by Reuters on Friday.

The TSA quoted the Arabic message as saying: “We call upon all Muslims to follow and identify private civilian American aircrafts in all airports of the world.”

“It is the duty of Muslims to destroy all types of private American aircraft that are of the types Gulfstream and Lear Jet and all small aircraft usually used by distinguished (people) and businessmen,” it quoted the message as saying.

It said the message explained how to identify private U.S. jets and also provided the tail number of a private plane believed to be used by the CIA.