Special counsel Robert Mueller’s team is reportedly looking into Ivanka Trump’s communications with Russian officials who attended the controversial June 2016 Trump Tower meeting.

According to the Los Angeles Times, Ivanka Trump did not take part in the meeting but did have an exchange with a Russian attorney and a Russian-American lobbyist who did attend the meeting.

Now, Mueller’s team wants to know more about the first daughter’s communication with attorney Natalia Veselnitskaya and lobbyist Rinat Akhmetshin. The exchange reportedly took place as the two were leaving the Trump Tower meeting, which was also attended by Donald Trump Jr., Jared Kushner, and former Trump campaign chairman Paul Manafort.