Iranian hackers sent unsolicited information they stole from Donald Trump’s presidential campaign to people who were affiliated with Joe Biden’s campaign over the summer, federal law enforcement officials said Wednesday.

The Office of the Director of National Intelligence, the FBI and the Cybersecurity and Infrastructure Security Agency said in a joint statement that in late June and early July, Iranian malicious cyber actors “sent unsolicited emails to individuals then associated with President Biden’s campaign that contained an excerpt taken from stolen, non-public material from former President Trump’s campaign as text in the emails.”

There is no indication that Biden’s staff ever replied, the statement says.

A spokesperson for Vice President Kamala Harris’ campaign said that “a few individuals were targeted on their personal emails.”

“We have cooperated with the appropriate law enforcement authorities since we were made aware that individuals associated with the then-Biden campaign were among the intended victims of this foreign influence operation,” said Morgan Finkelstein, national security spokesperson for the Harris campaign.