Israeli Foreign Minister Israel Katz denied a media report that Israel had planted listening devices in Washington D.C.

“Israel doesn’t carry out any espionage operations in the U.S.,” Katz said. “The U.S. and Israel share a large amount of intelligence information and work together to prevent threats and the strengthening of security of both countries.”

Politico reported on Thursday, citing three former U.S. officials, that the U.S. came to the conclusion within the last two years that Israel was probably responsible for putting cellphone surveillance devices near the White House and other locations in Washington D.C.

Israel was embroiled in a espionage case in the U.S. decades ago. Jonathan Pollard, a former U.S. navy intelligence analyst, was convicted of passing classified information to Israel and served 30 years in prison before being paroled in 2015.