A small western Pennsylvania water authority was just one of multiple organizations breached in the United States by Iran-affiliated hackers who targeted a specific industrial control device because it is Israeli-made, U.S. and Israeli authorities say.

"The victims span multiple U.S. states," the FBI, the Environmental Protection Agency, the Cybersecurity and Infrastructure Security Agency, known as CISA, as well as Israel's National Cyber Directorate said in an advisory emailed to The Associated Press late Friday.

They did not say how many organizations were hacked or otherwise describe them.